介绍体育人物的英语作文(优秀20篇)

The "Chong Yang Festival" is celebrated on the ninth day of the ninth lunar month, and it is as such known as the Double Ninth Festival.

Origins: The festival began as early as the Warring States Period (475 - 221 BC). According to the yin/yang dichotomy that forms a basis to the Chinese world view, yin represents the elements of darkness and yang represents life and brightness. The number nine is regarded as yang. The ninth day of the ninth month is a double yang day, hence the name "Chong Yang Festival". (Chong means "repeat" in Chinese.) The ninth month also heralds the approach of winter. It is a time when the living need warm clothing, and filial Chinese sons and daughters extended this to make the festival a time for providing winter clothes for their ancestors. The Double Ninth Festival, therefore, also became an occasion to visit the graves of dead family members. Clothes made of paper would then be burnt as offerings.

Climbing mountains: On the Double Ninth Festival, people customarily climb mountains, appreciate chrysanthemum flowers, drink chrysanthemum wine, and eat double-ninth cakes. The Double Ninth Festival is also the "Old Men Festival". Old people are especially meant to improve their health by taking part in the activities on the day of the festival.

Family get-togethers: The Double Ninth Festival is also a time for family get-togethers. It is an occasion to remember one‘s ancestors, the sacrifices they made and the hardships they underwent. Often, family outings are organised during which people search to renew their appreciation of nature and to reaffirm their love and concern for family members and close friends.

[重阳节介绍的英语作文

i am linjiang. i was born in jilin changchun. i graduate from henan university of urban construction. i started learning english since i was 15 years old.my father is a farmer . and my mother is a housewife. i am the youngest one in my family. my brother have a lot of american friends. that’s why i have no problem communicating with americans or others by speaking english.

in my spare time, i like to do anything relating to english such as listening to english songs, watching english movies or tv programs, or even attending the activities held by some english clubs or institutes. i used to go university for a short- term english study. during that time, i learned a lot of daily life english and saw a lot of different things.

i think language is very interesting. i could express one substanceby using different sounds. so i wish i could study and read more english enlarge my knowledge.

我是。我出生英寸我毕业的高中和英语专业。我开始学习英语，因为我是12岁。我的父母有很多美国朋友。这就是为什么我没有问题，与美国或其他国家的英语沟通。

我在业余时间，我喜欢做的任何与英语的听英文歌曲，看英文电影或电视节目，甚至参加一些英超俱乐部或学院所举行的活动。我曾经去作短期英语留学。在此期间，我学到了很多日常生活的英语，看到了很多不同的事情。

我觉得语言很有意思。我可以表达一种substanceby使用不同的声音。所以，我希望我能学习更多英语文学和扩大我的知识

It is my honor to have this opportunity to introduce myself. Dear Sir:

My name is yangyan, I major in Clinical pharmacy and I will graduate in July this year.

Generally speaking ,i am a hard working student especially do the thing i am interested in. i will try my best to finish it no matter how difficult it is.

During the past few years, I have learned systematically the theory of profession and got the basic manipulative skills about Pharmacy experiment . I have alreadypassed CET-6 in english and CCT-2 (=the second level) on computer . Also I have won several honors . In the hospital, through the year of internship , I learned a lot of knowledge in clinical practice. It may be helpful to my future study .

Thank you .

[医生求职英语自我介绍

Nine years old this year, the third grade, but my courage small, still slept with dad, you must feel very funny? This summer vacation, however, dad said: "heart of grace, you have grown up, want to sleep alone." Dad began to busy decorating my room. Do you want to know what is my room? Now let me introduce for everybody!

My room near the balcony, sits, the south there is a big window, the window there is a door leading to the balcony, it is spacious and bright. Right in the middle there is a room and white-striped children bed, 1.2 meters wide, 2 meters long. I like it very much, because it is very beautiful, particularly attractive is painted on the surface of the head of a bed has four pink different length of parallel lines, having a curve like curved river. Among them set with four silver beads, like four silver gems. On the bed lay a bedside table, cabinet I love winnie the pooh and ali rabbit. To the other side of the bed with a desk, it is divided into the cabinet and table, cabinet is installed on the transparent glass door, its around the embedded glistening beads, like stars in the sky. Cupboard filled up with all kinds of reference books, there are fairy tale books, science books, fables... A light flower cat lying on the desk the lamp that shield an eye, when I was doing class, it is a bright eyes light up my. Hung on the wall next to the desk a couplet: everybody has foundations for diameter, learn the bitter as the boat. It posted on the wall opposite the elegantly I draw personally comics, has run pony brother, ` busy little bees sister younger sister, lovely ducklings... Watch, I like in the fairy tale world.

My room, you are a good place for my study and life, you brought me great joy.

今年九岁，上小学三年级，但是我胆子小，还跟爸爸一起睡，你们一定觉得很好笑吧?可是，这个暑假爸爸说：“心怡，你已经长大了，要独自一人睡。”爸爸就开始忙着布置我的房间。你想知道我的房间是怎么样的吗?现在我来为大家介绍一下吧!

我的房间靠近阳台，坐北朝南，南面有个大窗户，窗户旁边有一扇门是通向阳台的，这里既宽敞又明亮。房间正中间有一张粉白相间的儿童床，宽1.2米，长2米。我很喜欢它，因为它很美，特别吸引人的是床头的板面上画有四条粉红色的长短不一的平行线，旁边有一条曲线像弯弯的小河。它们中间镶有四颗银灰色的珠子，真像四颗银宝石。床边摆着一个床头柜，柜子上摆着我喜爱的维尼熊和阿里兔。床的对面摆着一套书桌，它分为柜子和桌子，柜子上安装着透明的玻璃门，它的四周嵌着闪闪发光的珠子，真像夜空中的点点星光。柜子里摆满了各种各样的课外书，有童话书、科学书、寓言书……书桌上放着一盏花猫护眼灯，每当我在做功课时，它都发出明亮的护眼光照亮我。书桌旁边的墙面上挂着一幅对联：书山有路勤为径，学海无涯苦作舟。它对面的墙上帖着一幅幅我亲手画的漫画，有奔跑的小马弟弟、`勤劳的小蜜蜂妹、可爱的小鸭姐姐……看着看着，我仿佛进入了童话世界。

我的房间，你是我学习和生活的好地方，你给我带来了无比的快乐。

My favorite little animal, of course, is a small rabbit it! Shape, action, play phase ... ... can be fun!

The little rabbit has a white hair, a pair of big and red round eyes like two rubies; two long ears heard a sound to listen to the vertical, can be sensitive! I gave it a name - noob.

I remember once, in order to express the love of it, then reach out and touch it soft body of the villi, but accidentally touched it that short tail. It was furious and it was a little jumping, escaping from me, and I wanted to reach out and grab it - it did not catch it! So I was so wit and shouted "ah -" White was scared me, shocked, and then with a pair of big eyes staring at me, two little claws still shivering. I took the opportunity to rush up, grabbed its ears, it carried back home.

One day I just went home, put down my bag, ready to start doing homework, white will jump on my desk, in the pencil box on the stamped a few small plum, I not only blame it, but also that it is very cute in my I was happy when I was doing my homework.

I really like my good friend - white.

Cherry is a plant, Rosaceae, deciduous trees, flowers and leaves in March with the release or leaves after flowering. Are also the cherry as the name of the album.

樱花是一种植物,蔷薇科,落叶乔木,花于3月与叶同放或叶后开花.也有以樱花为名称的专辑.

Bark purple-brown, smooth and shiny, with horizontal stripes. Flowers and Leaves alternate, elliptic or obovate elliptic, margin Mount teeth, apex acute, while glands, surface dark green, shiny, slightly back light. Stipules lanceolate linear, jagged edge fine crack, crack terminal gland. Spend each 35, as umbrella inflorescence, sepals at the Standard, petal apex notch, white, red. Flowers and leaves in March with the release or the first flower after the leaves. The nuclear sphere, first red, then become purple-brown, mature in July. Japans national flower.

树皮紫褐色,平滑有光泽,有横纹.花与叶互生,椭圆形或倒卵状椭圆形,边缘有芒齿,先端尖而有腺体,表面深绿色,有光泽,背面稍淡.托叶披针状线形,边缘细裂呈锯齿状,裂端有腺.花每支三五朵,成伞状花序,萼片水平开展,花瓣先端有缺刻,白色、红色.花于3月与叶同放或先花后叶.核球形,初呈红色,后变紫褐色,7月成熟.为日本国花.

Mountain cherry, cherry, also known as green skin. Su dry skin brown, oval-shaped leaves mostly lanceolate, apex usually caudate, serrated edge with a tapered single-or re-toothed, teeth glandular terminal barbed Mount, dark green leaf surface smooth, white powder have been in the back of micro-pulse hairy, often young leaves brown. Petiole with 2-4 glands, flowers ill with double petals, white or pink, ovate fruit spherical, black when ripe, the Chinese origin of species more common in North China wild mountain fast-growing, sprouting ability, resistance to dust, Often the cherry rootstocks, nucleolus can be used as medicine

山樱：又名青肤樱.干皮粟褐色,叶多为椭圆状披针形,先端常尾状,缘具尖细单锯齿或重锯齿,齿端有腺质刺芒,叶表苍绿光滑,背面微被白粉有中脉有毛,幼叶常为褐色.叶柄有2-4腺体,花单瓣或重瓣,白或粉红,果卵状球形,熟时黑色,为原产种,华北山地多见野生,生长快速,萌芽力强,抗烟尘,常作樱桃之砧木,核仁可入药

[中国植物英语作文

Xian was called Changan in Han Dynasty. The connotation of "Changan" is "a place of permanent peace". It was not until the prosperous Tang Dynasty that Changan became famous both at home and abroad as the largest and busiest international metropolis of that age in the world. Xian obtained its present name in 1369. It stands first on the six largest ancient capitals. From the 11 century B.C. onwards, Xian or its vicinity was established as the capital city by 11 dynasties successively, including the Western Zhou, the Qin, the Han, the Sui and the Tang, and it also served as the capital of two peasant regimes respectively under the rule of Huang Chao and Li Zicheng. The citys capital status lasted for 1,608 years. As regards the number of dynasties and span of time, Xian served as an ancient capital beyond compare.

During the Tang Dynasty (618-907), Xian was the largest city in the world. Changan, was linked to many central Asian regions and Europe via the Silk Road, with thousands of foreign traders living the city.

Xian is the capital of Shaanxi Province and also the political, economic and cultural center of the Northwest China. With the development of travel industry and the implementation of the open policy, it has become one of the nations key tourist cities and tourism has become the mainstay in Shaanxis economy.

Xian lies at longitude 103? east by latitude 34?north, and 412 meters above sea level. It has an average annual temperature of 13癈, and an average annual precipitation of 604 mm. The rainy season comes in July, August and September. The city now has under its jurisdiction eight districts -- Xincheng, Beilin, Lianhu, Yanta, Weiyang, Baqiao, Lintong and Yangling, and five counties -- Changan, Lantian, Huxian, Zhouzhi and Gaoling. As a whole, Xian covers an area of 9,983 square kilometers and has population of 5,860,000. The city proper occupies an area 861 square kilometers, and reaches a population of 2,650,000.

With an elevation of 500 metres, the Weihe Plain extends between Baoji in the west and Tongguan in the east and borders the Qinling Mountains in the south and the Huangtu Plateau in the north. Lying in the warm zone, the plain has a temperate climate with four distinct seasons. Chequered with the Weihe, Jinghe, Luohe, and Bahe rivers as well as the Jinghui, Weihui and Luohui canals, the fertile land on the plain has easy access to irrigation facilities and an abundant yield of farm produce. Xian lies in the centre to the south of this plain, a favourable geographical location surrounded by water and hills.

[介绍西安的英语优秀作文

清明节的习俗除了讲究禁火、扫墓，还有踏青、荡秋千、蹴鞠、打马球、插柳等一系列风俗体育活动。下面语文迷小编精心为大家整理了关于清明节习俗的英语作文，希望对你有帮助。

The Qingming (Pure Brightness) Festival is one of the 24 seasonal division points in China, falling on April 4-6 each year. After the festival, the temperature will rise up and rainfall increases. It is the high time for spring plowing and sowing. But the Qingming Festival is not only a seasonal point to guide farm work, it is more a festival of commemoration.

The Qingming Festival sees a combination of sadness and happiness.

This is the most important day of sacrifice. Both the Han and minority ethnic groups at this time offer sacrifices to their ancestors and sweep the tombs of the diseased. Also, they will not cook on this day and only cold food is served.

The Hanshi (Cold Food) Festival was usually one day before the Qingming Festival. As our ancestors often extended the day to the Qingming, they were later combined.

On each Qingming Festival, all cemeteries are crowded with people who came to sweep tombs and offer sacrifices. Traffic on the way to the cemeteries becomes extremely jammed. The customs have been greatly simplified today. After slightly sweeping the tombs, people offer food, flowers and favorites of the dead, then burn incense and paper money and bow before the memorial tablet.

In contrast to the sadness of the tomb sweepers, people also enjoy hope of Spring on this day. The Qingming Festival is a time when the sun shines brightly, the trees and grass become green and nature is again lively. Since ancient times, people have followed the custom of Spring outings. At this time tourists are everywhere.

People love to fly kites during the Qingming Festival. Kite flying is actually not limited to the Qingming Festival. Its uniqueness lies in that people fly kites not during the day, but also at night. A string of little lanterns tied onto the kite or the thread look like shining stars, and therefore, are called "gods lanterns."

The Qingming Festival is also a time to plant trees, for the survival rate of saplings is high and trees grow fast later. In the past, the Qingming Festival was called "Arbor Day". But since 1979, "Arbor Day" was settled as March 12 according to the Gregorian calendar.

Hello,every one!（大家好）My name is **** . （我叫****）

Im a 15 years old girl. （我是一个15岁的女孩）（具体情况自己改）

I live in the beautiful city of Rizhao.（我住在美丽的Rizhao城）（你可以把Rizhao改成自己家乡的城市的名称的拼音）

Im an active ,lovely and clever girl.(我是一个活跃的可爱的聪明的女孩）

In the school , my favourite subject is maths . （在学校，我最喜欢数学）

Perhaps someone thinks its difficult to study well .（也许有些人认为这很难学）

But I like it.（但我喜欢他）

I belive that if you try your best, everything can be done well.（我相信每件事付出努力就会有害结果）

I also like sports very much.（我也很喜欢运动）

Such as,running,volleyball and so on. （像跑步、排球等等）

If you need help ,please come to me .（如果你需要帮助，就来找我）

I hope we can be good friends!（我希望我们能成为好朋友）

The large number of our population has become one of the most serious problems of our society. according to a recent survey of the national bureau of statistics, there are more than 1.3 billion people in our country, which account for about 1/5 of all the people in the world. the same survey also predicts that our population will grow quickly in the years to come.

overpopulation has brought about a series of negative effects to our economic development and social security. in the first place, too many people impose a heavy burden on our environment. as a result, we suffer from a shortage of fresh water and natural resources. in the second place, as the supply of labor greatly exceeds the demand of the society, many people become employed. this is a source of social unrest. last but not least, we have to manufacture all kinds of products to meet the needs of the people, which causes environment pollution to our lakes and land.

serious though the problem seems, we have to take some measures to tackle it. on the one hand, the government should carry out more strictly the policy of family planning, thus reducing the total number of population. on the other hand, all the people should realize the harms of overpopulation. with the concerted efforts of all the parties concerned, we’re sure to solve the problem in the future.

[介绍人口英语作文

Good morning ladies and gentlemen!I am of great hornor to stand here and introduce myself to you .First of all , my chinese name is XX and my english name is XX .I am XX years old. I am open-minded ,quick in thought and very fond of English.In my spare time,I have broad interests like many other youngsters.I like reading books, especially those about XX . Frequently I exchange with other people by making comments in the forum on line.It is my long cherished dream to be a member of English . I think Im a good team player and Im a person of great honesty to others. Also I am able to work under great pressure.

That’s all. Thank you for giving me this chance.

My favourite animal is the giant panda. The giant panda or panda is a bear living in central western and south western China. Most pandas live in Sichuan province. Pandas are adorable because of their distinctive black patches around eyes, ears and across its round body. Pandas are China’s national treasures. They’re among the world’s most adored and protected animals. Pandas are the star attractions in the Beijing Zoo. Experts say that despite their sweet public image, pandas are capable of attacking humans, especially if they feel threatened.

My father is 37 years old, he has a pair of bright and piercing eyes, eyes there are some years left traces. Dads hair is very short, he said it can be convenient to wash your hair. In my mind, he always wore the dirty clothes, two hands very rough, a look to know his work is very hard.

You do not see him usually always laughing, in fact, I was very harsh. Dad said, do not ask me to test the first class, as long as the first few to enter the line on the line. I remember one time I careless, only test eighty points. On the way home from school, my heart like "fifteen bucket water - seven on eight". Back home, my father asked me how many points test, I scared not speak. Dad took me past, said to me: "I usually teach you how, how can you afford me, how worthy of working hard in the mother abroad?" Dads words let me shed tears of pain.

Although my father is harsh, but the heart is very hurt me.

I remember once, my father took me to the park to play. After getting out of the car, I walked for a moment to feel a little tired. Dad seeing me busy said: "Lin Yu, I come back you walk it!" Then he squatted down, let me climb up his big back. I was lying on the back of my father very comfortable to touch his hair, in the suns exposure, I saw the fathers head has a silver-like hair like hair. My heart slightly dengkou a bit, thinking, how so fast father began to old? I secretly shed tears, and my heart silently said: "Dad, I must learn, grow up and reward your parenting!"

In fact, my fathers love for me far more than this little bit. My mother went abroad for three years, my father both when the father and when the mother, the tube I eat, drink, play ... ... Dads hard is unspeakable.

[介绍我的爸爸英语作文精选

Good morning，ladies and gentlemen. I am Leo from Guangzhou Zhengxin International School. I am a sunny boy. My family love me and I love them too. My mom works very hard every day. She comes home very late in the evening. Do you know how to help the parents at home? Let me tell you about that.

女士们先生们早上好，我来自广州正心国际学校，我是阳光男孩，我们全家都很爱我，我也很爱他们，每天爸爸妈妈工作都很努力，晚上都很晚下班，你知道如何在家中去帮助妈妈吗？让我告诉你

Usually my dad cooks for us. Sometimes I help my dad to wash the vegetables. Sometimes I set the table. I always wash the dishes when we finish eating. After I finish my homework I often water the flowers. I also look after my pet fish. I feed the fish before I go to bed.

有时我爸爸会给我们煮饭，那我也会，帮助我爸爸去洗菜，摆餐具，饭后我总是习惯去洗碗，写玩作业后我会主动去浇花，以及在睡觉之前我会去喂鱼。

I really enjoy helping my parents at home. Do you think I am a helpful boy? I think so! Thank you! 我很喜欢帮助爸爸妈妈去做事，你觉得我是一个好帮手吗？我想我是！谢谢！

Gooda fternoon,teachers! My name is XuLulu. I`m 11. I come from Class1 Grade 5 of TongPu No.2Primary School. There are 4 people in my family. My father is tall. My motheris pretty.My sister has a long hair. And I`m a good student. However, my homeis near the school, I often get up early. Because I must work hard. afterschool, I like playing computer games and reading books. I`d like to eatapples. They are sweet and healthy. And I like Tuesday best. We have English,music, computer and P.E. on Tuesdays. My math teacher is Miss Huang. Her classis so much fun. So my favourite class is math. And I like Chinese and English,too. This is me. An active girl. Please remember XuLulu. Thank you very much!

Good morning everyone!

Im Nickole. Im 24. I graduated from Hunan Normal Universaty on Shuda Campus. My major is English Education. After graduation， I have worked for one year in Li Yang听Kids Engish. My students are between 5 and 12 years old.

Im outgoing and open-minded. In my spare time， I have broad interests. Such as reading， surfing the internet， listening to music and even chatting with foreign friends online if possible. I like children very much. I think children are active， innocent and pure. With them， I feel very relaxed， plesant and younger. Therefore， I learned a lot from my one year working experence.

Teaching children English is very interested but it is also challeging. Because children are always active， even sometimes very naughty. So teachers need a lot of patience to deal with children. The most important that I have learned from my one year teacing experence is that a teacher should have the kind of听the mind that always wants to go on learning. Teaching is a job at which one will never be perfet. If I have the chance， I will try my best to be a good primary English teacher.

good morning， my name is xx， it is really a great honor to have this opportunity for a interview， i would like to answer whatever you may raise， and i hope i can make a good performance today， eventually enroll in this primary school.

I am a third year master major in automation at Shanghai Jiao Tong University， P. R. China. With tremendous interest in Industrial Engineering， I am writing to apply for acceptance into your Ph.D. graduate program. In 1995， I entered the Nanjing University of Science & Technology (NUST) -- widely considered one of the China’s best engineering schools. During the following undergraduate study， my academic records kept distinguished among the whole department. I was granted First Class Prize every semester， and my overall GPA(89.5/100) ranked No.1 among 113 students. In 1999， I got the privilege to enter the graduate program waived of the admission test. I selected the Shanghai Jiao Tong University to continue my study for its best reputation on Combinatorial Optimization and Network Scheduing where my research interest lies.

A Letter to My Dear Father

Dear father,

This Sunday is Father’s Day. I am very happy. I’m writing a letter for you now. But my classmates are playing games.

Today is rainy. Please take care. Do you know? My study is good. There fore, don’t worry about my study. I have a good news to tell you. I have won the second award at the piano competition. Are you happy ?

On the weekend, I usually go hiking on the Song Shan Lake. We are very happy. But after we walk for a long time, we feel a little tired. When the sun goes down, we return home. I like going hiking. What about you?

Happy Father’s Day to you!

Yours

Shiqi

Good afternoon everyone, my name is XXX, I’m 29 years old, and I’m from Beijing.

I’d like to introduce myself through the next points:

About working: There are three main aspects of my daily work:

The first, I teach courses such as basic laws and politics. I can feel the strong responsibilities on a teacher, because I have to not only teach knowledge well, but also let students know how to be a good person.

The second, I’m responsible for some administrative work, such as students recruiting and employment. The main majors in our college are urban metro, car repairing, transportation management, logistics and so on.

I think the students recruiting and employment are very important to our college as well as to students and their parents, the serious working attitude and consciousness are highly required.

The third part of my daily work is to be a head teacher, there is an idea I respect very much: there is no bad students, but only bad teachers. If a family is a component of our society, then the class is a component of the school.

When we judge a class good or bad, the key ruler is the organization and management ability of a head teacher, as well as the good working attitude and teaching methods. A head teacher is the pathfinder on the way of students growing, as a young teacher, I’ll try my best to be an excellent head teacher.

About daily life: I have a wide range of hobbies, especially sports and reading.

Sport: We have very good sports facilities in our college, I play badminton every Tuesday, and play basketball every Friday. I think that sports is the best flavor of our life, it can release the pressure and relax our mood.

Reading: I have good reading habits since I was a child, I like the famous four classic very much, and I’m also interested in some biography and news commentaries. I think books can help people being mature, they affect me gradually.

And of course, I have the confused moment, but I think the difficulties can help me grow. Thank you.

Nowadays, there are many kinds of activities for people entertaining in their leisure time, especially in holiday, such as climbing a mountain, having a picnic, holding a party and so on. However, these recreational activities have its advantages but also bring some harmful influences to people’s lives.

First, to some extent, these recreational activities enrich people’s lives. Those who take part in different activities will not be easy to feel lonely or boring in their leisure time and live wonderful lives instead. Second, taking part in some group activities is a good form to strengthen friendships. For example, many students will hold a union to collect their old classmates or friends in winter holiday so that they have a common time to communicate with each other. Last but not least, such activities like climbing a mountain provide a good chance to do exercise.

However, these recreational activities also bring some problems at the same time. For one thing, taking part in too many these activities will increase the burden of themselves or their families because it is inevitable to spend some money in holding these activities. For another, some recreational activities have potential harm for participants’ health, particularly staying up all night, drinking and smoking.

Therefore, in my opinion, we have to make a careful consideration before we take part in these recreational activities.

I am . I was born in Changsha. I graduate from senior high school and major in English. I started learning English since I was 12 years old. My parents have a lot of American friends. That’s why I have no problem communicating with Americans or others by speaking English.

In my spare time, I like to do anything relating to English such as listening to English songs, watching English movies or TV programs, or even attending the activities held by some English clubs or institutes. I used to go abroad for a short- term English study. During that time, I learned a lot of daily life English and saw a lot of different things.

I think language is very interesting. I could express one substance by using different sounds. So I wish I could study and read more English literatures and enlarge my knowledge.

Good morning. I am glad to be here for this interview. I’m XX and I have been working as a XX at XX for ... years since my graduation from XX University. During my undergraduate years, I developed an interest in XX. Then I took several selective courses on XX and read a lot of literature in this field. However, it is one thing to study XX theory in university, but another to put theory into practice. That’s why I decide to be a XX to enrich both my XX knowledge and practical experiences.!