0

关于空气污染的英语汇编20篇

浏览

460

作文

96

旅游污染英语tourismpollution

全文共 1461 字

+ 加入清单

Responsible travel is very well expressed in the famous travelers saying: Take nothing but pictures, leave nothing but footprints, kill nothing but time. Travelling is every one’s way of getting away from the hustle and bustle of life and sometimes, because we are so engrossed in our desire to enjoy and have fun, we tend to forget that the we only have one earth to live on and that we are all responsible for it. Very often, we are not conscious enough to realize that one little candy wrapper that we threw outside the bus while travelling could one day contribute to the blocking of the drainage system and could cause flooding in the area; we are not aware enough of the fact that the litter we throw away carelessly might one day turn the place into a trash dump; we are not considerate enough to see the tree we attempt to climb might be over 500 years old and can hardly bear our weight.

I think we should understand that travelling should not be seen as something that is human-centered.

It should be understood that when we travel, we should feel honored that we could still see and enjoy the beauty of the world.

We, as a human being, should be responsible for the few of the remaining beautiful places in this planet. Being responsible doesn’t necessarily mean that we are required to do something grand for the environment. It’s those little things that matter the most. If everybody starts doing those little things, I bet it could change the world.

展开阅读全文

更多相似作文

篇1:大气污染小学生空气污染危害大

全文共 774 字

+ 加入清单

空气污染不管是对我们还是对植物危害都很大,为什么这么说?这是我通过一次研究发现的,至于是什么研究,就听我慢慢跟大家说。

在庭园里种些花草,不仅能美化我们的家,还能净化我们四周的空气,让我们呼吸的空气更清新。因此有人说,一个具有一定规模的庭园就像一个不停工作的天然“氧吧”,能提供我们所需的清新空气。但近几天我发现我家的天然“氧吧”“罢工”了,每天清早我到院子里,再也呼吸不到以前那种清新的空气了。这是怎么回事呢?是什么令到我家的天然“氧吧”停止工作呢?我下定决心,一定要把那个“凶手”揪出来!

针对上述事件,我查阅了大量资料,综合我对花草、树叶的连日观察,发现嫌疑最大的是近日车辆的频繁来往,造成了严重的空气污染,加上附近的一些食店排放出来的油烟因近日风势不强,得不到有效的散解,被花草、树叶过量地吸收,造成叶片表面气孔被尘粒堵塞,以至它们不能“工作”。我咨询了自然老师,老师认为这种可能性很高,让我回家去试验一下。于是我回去采了一些花草样本,把它们栽在室内,定期让它们照射阳光,浇水次数加密,几天后,和其他的比较一下,发现经我“悉心照顾”的那些花草比外面的生长得好多了。根据我的实验结果,我把每天浇水的次数加密到每天3次,经过我一个多星期“苦心经营”,“天然氧吧”终于又恢复了正常的工作,每天为我们提供着清新的空气。

综合以上所述,我得出了结论:“天然氧吧”的停止工作,是因为周围空气污染的日趋严重,使花草过量地吸收了空气中的一氧化碳、碳氢化合物、氮氧化物以及空气中的悬浮粒子,以至花草、树叶中用于进行光合作用的气孔被堵塞,机能超荷,停止工作。我终于把这个“凶手”揪了出来!

你看,这就是空气污染的危害。空气污染其实伤害的不仅仅是我们自己,也伤害了地球上的许许多多的生物,还有我们的地球母亲……让我们一起行动起来,减少空气污染,一起保护我们的生存环境吧!

展开阅读全文

篇2:汽车污染英语作文

全文共 555 字

+ 加入清单

In general, there are two way of traveling, private cars and public transportation.

Chinese people should regard public transportation as their first traveling opinion.

First, there are so many people living in this countries that make it so crowded.

If each chinese people own a car, there will be far more traffic jams and accidents, which increase you impatience.

Moreover, there will be far more pollution resulted from cars. Once a car started, it release huge amount of dirty gas and heat, which lead to great pollution and result in green house effect.

展开阅读全文

篇3:环境污染类英语作文

全文共 1331 字

+ 加入清单

环境污染(environment pollution)是指人类直接或间接地向环境排放超过其自净能力的物质或能量,从而使环境的质量降低,对人类的生存与发展、生态系统和财产造成不利影响的现象。具体包括:水污染、大气污染、噪声污染、放射性污染等。

人类生产活动对自然环境的污染主要包括两个方面:一是工业生产过程中产生的废水废气废渣和农业上使用的农药、化肥等对水、大气、土壤、食品的污染;二是在自然资源开发和利用中,产生的对环境的污染。

相信大家对于环保都有一定的认识,也曾读过关于限塑令,节约用水保护环境等为主题的作文。我们来看一下这篇范文,试着找出其中的优点与不足。

Low-carbon life is the lifestyle of the time to minimize energy consumption, thereby reducing carbon dioxide emissions. Low-carbon life, for those of us ordinary people is an attitude to life. It gives us is a willing and we were creating a low carbon life issues.Taomi Shui can be used to wash their hands every day, clean furniture, water the flowers and so on. Clean, natural moisture;Scrap paper will pave the lowest in the closet can not only absorb moisture, can absorb the smell in the closet;Drink tea residue, dry it, make a tea pillow comfortable, and help to improve sleep;Lifestyle to reduce energy consumption when, thereby reducing the carbon, especially carbon dioxide emissions. Low-carbon life, for us ordinary people, an attitude, not ability, we should actively promote and to practice the low carbon life, pay attention to energy saving, fuel-efficient, water saving, solar terms, starting from scratch. 这篇作文第一段讲述了什么是低碳生活以及低碳生活成为了当今的热门话题。第二段介绍几种低碳生活的方法。第三段作总结,提倡大家注意低碳生活,紧扣主题。本人认为这篇作文整体来说还可以,但第二段作者直接上来就把具体方法告诉大家,没有一个引导句或总结句,稍微显点突兀。

展开阅读全文

篇4:环境污染保护英语

全文共 951 字

+ 加入清单

Last Sunday my father and I went fishing along a river. We found the water so dirty that we could hardly catch fish in it.

A lot of factories along the river always poured their waste water and rubbish straight into the river which made the river water polluted. In this way most of the fish in the river were killed.

If the river water all over the country is polluted like this, no living things will exist in the water. As we all know, environmental pollution does great harm to living things and human beings. Now more and more people have come to realize how serious this problem is. Our government is doing her best to take measures to fight against pollution. We expect that the water in every river will be made cleaner and cleaner before long.

上个星期日我和爸爸一起去钓鱼。我们发现水太脏了,我们几乎不能在它的鱼。

沿着这条河的许多工厂总是把废水和垃圾倒进河里,使河水受到污染。这样,河里的大部分鱼都被杀死了。

如果这个国家的河水都被污染了,水里就不存在生物。我们都知道,环境污染对生物和人类都有很大的危害。现在越来越多的人开始意识到这个问题有多严重。我国政府正在尽最大努力采取措施打击污染。我们期望在每一条河流中的水将在长时间内变得更清洁,更清洁。

展开阅读全文

篇5:工业污染英语Industrialpollution

全文共 763 字

+ 加入清单

It was the industrial revolution that gave birth to environmental pollution as we know it today. The emergence of great factories and consumption of immense quantities of coal and other fossil fuels gave rise to unprecedented air pollution and the large volume of industrial chemical discharges added to the growing load of untreated human waste. Chicago and Cincinnati were the first two American cities to enact laws ensuring cleaner air in 1881. Other cities followed around the country until early in the 20th century, when the short lived Office of Air Pollution was created under the Department of the Interior. Extreme smog events were experienced by the cities of Los Angeles and Donora, Pennsylvania in the late 1940s, serving as another public reminder.

展开阅读全文

篇6:关于空气污染的英语

全文共 1058 字

+ 加入清单

Air pollution is one of the major problems of the modern world.

A great deal of energy is needed to run the factories of modern industrial nations. Automobile, trains, planes and busses need energy, too.

Nearly all of this energy is produced by burning fuels. The burning produces wastes, some of which remain in the air, causing air pollution.

Scientists are finding ways to stop air pollution especially in big industrial areas and densely-populated cities.

They are studying new ways of generating electricity that may be less damaging to the environment. In the meantime, many power plants are being modernized to give off less polluted material.

Also, engineers try to design and locate new power plants to do minimum damage to the environment.

However, it may be that we still have a long way to go before we have a "clean" world.

Nearly all of the countries are trying hard to prevent and control air pollution. There indeed seems to be no end to tasks that environmentalists will be required to do.

People will continually find new ways to control pollution.

展开阅读全文

篇7:有关污染英语作文高中

全文共 882 字

+ 加入清单

In the past few decades, our Earth has changed a lot, but to the bad

direction. Among these changes, the air pollutions resulting from a huge number

of automobiles and coal-burning is almost the severest. The severe air pollution

alarms humans of the heavy load we have exerted on Earth by our insatiable

production and usage of automobiles. However, with the deepening of

urbanization, more cars are needed, which will make the air pollution worse.

Therefore, the following actions should be taken. First, we should apply the

most cutting-edge technologies in order to adopt new forms of energy as

substitutes for fossil fuels. Second, try hard to develop possible

transportation means, which are enviromental friendly. So that the citizens can

reduce the dependence on cars. In short, our humans should take responsibilities

for the air pollution and have to find ways to solve this problem.

展开阅读全文

篇8:中国的环境污染为话题的初中英语作文

全文共 1341 字

+ 加入清单

以下是为大家整理的关于以中国环境污染话题初中英语作文的文章,希望大家能够喜欢!

Directions:For this part, you are allowed 30 minutes to write a composition on the topic:

Pollution: An Increasing Concern in China You should write at least120 words following the outline below in Chinese.

1. 中国的污染的现状

2. 造成污染的原因

3. 解决的办法

Pollution: An Increasing Concern in China

It is reported that ten big cities in China are being ranked among the top twenty cities with the highest pollution index in the world. This means it is high time we did something to bring the situation under control.Many factors are contributing to the deteriorating situation: industrial wastes pumped into the air, the lakes and rivers; a increasing number of automobiles crowding into the streets; the widespread use of plastic bags etc.

To my view, stiffer laws and regulations must be implemented to check pollution. Industries that release wastes without permission should be heavily fined. Cars should be equipped to minimize the exhaust they release into the air. And the use of plastic bags and disposable meal boxes should be banned. What’s more, the media should play an important role in implanting a sense of environmental consciousness into people’s mind. If everybody works toward a common goal of making the environment better, we can create a cleaner and lovelier world for us and for the coming generation.

展开阅读全文

篇9:大气污染小学生我发现空气被污染了

全文共 247 字

+ 加入清单

今天早上起床,我洗漱了一下,吃了饭,到了中午我去楼下玩。

一下午我看到我的朋友们在放鞭炮,我也闻到了浓浓的火药味,那味可真是呛啊!我们玩的周围都是火药味。尽管有那么呛,但还是有许多人下去玩,继续放鞭炮。我因为感到太呛,所以就跑上楼写作业去了。连续好几天都是那样,只有朋友叫我的时候我才下去玩一会。他们问我:“你这几天怎么不下去玩呢?”我说:“难道你们这几天在楼下玩都感觉不到很呛吗?我是因为你们这样放鞭炮把空气污染了,我感到很呛,所以不想下去。”

我想我如果少放一些鞭炮,空气就是会少一些污染了吧!

展开阅读全文

篇10:环境污染四级英语

全文共 1342 字

+ 加入清单

Today,my topic is environmental pollution. As the world get more and more modern, pollution presents a serious problem. More people make more waste. All this waste is polluting our environment. Pollution has a bad influence on our life. There are still many problems of environmental protection in recent years. The most serious problems is the pollution of air, water and soil.

Air pollution is one of the major problems of the modern world. Because some waste gases is coming from factories, cars, power plants put out.The polluted air is harm to people’s health.

The polluted water causes diseases and death. With the development of modern agriculture and industry, more and more waste water is being poured into rivers. It has caused serious pollution. The river is becoming so dirty that no living water pollution is one of the major problems of the modern world.There are nothings can live in it. The river is giving off a terrible smell.

Soil pollution was very serious. The garbage has become an important problem in major cities, ten million tons of garbage every day, a lot of garbage is not incineration and corruption, such as plastic, rubber and so on.

In conclusion, the environmental pollution problem is becoming more and more serious, affecting every aspect of our lives. For our health, we should protect our living environment.

展开阅读全文

篇11:环境污染的英语

全文共 932 字

+ 加入清单

Some fish are forced to leave polluted water and are flying in the sky. But unfortunately, air is also so polluted that they have to wear masks. Each of them is crying, “Where is my home?” What a terrible sight!

Mankind has brought so much pollution. Waste is being poured into rivers and seas. Poisons to kill pests in farming and chemicals go into rivers and seas, too. Poisonous gasses from factories also make the air so dirty. The whole balance of nature is being destroyed as a result of our ignorance of the environmental protection.

Personally, man can not live alone on the earth. Should fish die from serious pollution, so would man! It is high time we did something to prevent such a scene from happening.

【译文】

何处是我家?

一些鱼类被迫离开受污染的水,并在天上飞。但不幸的是,空气污染,也使他们不得不戴上口罩。他们每个人都在哭,“我的家在哪里?”这太可怕了!

人类带来了如此多的污染。废物被排入河流和海洋。毒药杀死农业害虫和化学品进入河流和海洋去,太。从工厂有毒气体也使空气这么脏。整个自然界的平衡被毁坏了我们对环保的无知造成的。

就个人而言,人不能独自生活在地球上。如果鱼死了严重的污染,将男人!现在是时候我们做了一些,以防止发生这样的场面。

展开阅读全文

篇12:旅游污染英语WillTourismBringHarmtotheEnvironment

全文共 1654 字

+ 加入清单

It is universally acknowledged that tour can make people feel happy; traveling is a good way to relax oneself. Tourist data shows that people in China made a great contribution to the world tourism, and it’s more and more popular for people to go out for vocation. Though reports criticized that tourism had brought harm to the environment, I still believe in the rising pace of tourism.

Well, there is no denying that at this moment, tourism has caused some problem to the environment, but what I want to emphasize is that such damage are raised by people, as long as we improve the environmental consciousness of our citizens, as well as perfect the public facilities, such as adding more dustbins to convenience tourists; building cafeterias to offer meals to them. I believe within a period of time, the situation can be relived.

Environment itself also has the ability to recover itself. Years ago, when there were no so many tourists, and no industrial pollution, trees grew well, flowers smelt good, sky was blue, water was clean. Why the nature seems so unnatural now? It must be our own problem, for we have took too much, but paid back too less. Think how we treat our land. It is really unfair.

Just as I mentioned before, tourism had brought great profit to our economic, whatever scenic spot it is, it must has the relationship with our land, our trees ,our water, etc., everything can’t separated from earth. So as you see, tourism won’t bring harm to the environment, but ourselves.

It is good for us to go out to feel different culture atmosphere, and to see different local conditions and customs, but remember, protect our nature resources.

展开阅读全文

篇13:我们周围的污染中考英语作文_初中英语作文1000字

全文共 913 字

+ 加入清单

Pollution around us

In recent years our life is becoming better and better. But our environment is becoming worse and worse. Its very bad for our life. Now many people have air-conditioners and cars, they produce (give off ) waste gas. More and more trees are being cut down. There are so much sand on the earth (leaving only sand ) . We often see factories pour waste into rivers or lakes. Water in the river is quite dirty. We havent enough clean water to drink in cities. Now we are in danger. Its very necessary and important to protect the environment well. I think if everyone tries his best to protect the environment, the world will become much more beautiful , and our life will be better and better .

我们周围的污染

近年来我们的生活越来越好。但是,我们的环境越来越糟。它对我们的生活很糟糕。现在很多人都有空调和汽车,他们生产的(出)废气。越来越多的树被砍伐。有那么多的沙子在地球(只留下沙)。我们经常看到工厂把废水倒入河流或湖泊。河里的水很脏。我们没有足够的干净的水的城市。现在我们有危险。这是非常必要和重要的保护好环境。我想,如果每个人都尽自己最大的努力去保护环境,世界将变得更加美丽,我们的生活会越来越好。

展开阅读全文

篇14:关于环境污染的大学英语作文

全文共 545 字

+ 加入清单

Protecting the Environment

With the improvement of our living standard, more and more people can afford a car. As a result, our roads are more often than not crammed with cars. However, with more and more waste gas being discharged by the cars, the problem of air pollution becomes even more serious. So nowadays we advocate to lead a low-carbon life.

My suggestion is we should ride bikes more often instead of driving cars.By riding a bike, we can not only exercise our body but also protect our environment. Why not have a try, my dear friends?

展开阅读全文

篇15:关于环境污染英语作文带翻译

全文共 1481 字

+ 加入清单

今天,我按老师的要求去调查周围环境保护的情况。

Today, I according to the requirements of teachers to investigate the protection of the environment.

我先来到公园,就看见那儿到处都是垃圾。我眼前有一个阿姨,她坐在石凳上,吃着瓜子,还把瓜子壳扔得满地都是。我看见了很生气,就去阻劝阿姨。可她却一副事不关己,高高在上的样子。我看见有清洁工在打扫卫生,可是周围人扔垃圾的速度远比他们打扫的要快得多。

I first came to the park, I saw there was rubbish everywhere. I have an aunt, she sat on the bench, eating melon seeds, the seeds were strewn across the floor. I saw aunt is very angry, to dissuade. She has a pair of NIMBY, superior. I saw street cleaners cleaning the health, but the surrounding people throw garbage much faster than they clean the much faster.

我又来到了公园东侧的小河边,看见水面上漂浮着塑料袋、饼干包装袋……甚至还飘着几条小鱼的尸体,散发着一股股令人作呕的气味。

I went to the park on the eastern side of the river, saw floating on the water with plastic bags, packaging bags of biscuits...... Even with a few small fishs body, exudes the smell shares turn ones stomach.

我来到了菜市场,看见地上尽是烂菜叶、烂水果,还有还有家禽的羽毛及内脏,这么脏的地面让我的脚都不敢踩下去了。哎呀!糟了!我踩在香蕉皮上摔跤了,裤子都被弄湿了!我赶紧爬起来,慌忙逃离。

I went to the vegetable market, saw the ground was full of rotten vegetables, rotten fruit, as well as poultry feathers and visceral, the dirty ground make my feet have not stepped on. Oh! Bad! I stepped on the wrestling on a banana skin, pants are wet! I quickly got up, hurried away.

周围的环境简直糟透了,若再不注意保护,我们人类定将无法生存。让我们一起行动起来吧,保护环境,从“我”做起。

The surrounding environment is bad, if we do not pay attention to the protection of the human, we will not survive. Let us act together now, Protect environment, from "I" to start.

展开阅读全文

篇16:高三关于环境污染英语作文带翻译

全文共 2159 字

+ 加入清单

In the 21st century, humans science economic development has reached a very high level. But I want to ask: do you have any aware of human activities on the environment will be what kind of impact?

The deforestation of the forest is not a serious problem? According to the survey the world forest area is in at an annual rate of millions of hectares of disappear. Caused a lot of water and soil loss, make many areas become desert. Scope of human activities in the declining, its not scary?

What human besides destroying forests, dont damage the environment problems? It is not. Now, we should see the seriousness of water pollution. At present, 60% of the country in the world face the shortage of water, 20% of the population is difficult to get clean water, 51% of the people do not have access to sanitary water. This is caused by what? Is, that we are causing ourselves now factories and sewage in our life, not by processing is out. This is not proof of that? According to research, each 1 cubic meter of sewage discharge, 14 cubic meters of natural water pollution. Think of it, this is what a terrible number?

In the discharge of smoke in the factory, we dont know the smoke is atmospheric pollution? Scientists have found that there are at least 100 species of air pollutants produced great harm to the environment, directly affect peoples health.

Do we want to live in such an environment? Certainly dont want to; Then let us use action to prove it! We can start from me, start from now, start from the side. Love nature, the consciousness of environment protection! To do propaganda environmental protection angel! Lets take action to protect the environment

在21世纪的今天,人类的科学经济发展已经达到了很高的水平。然而我想问:你们有没有意识到人类的活动对环境会造成怎样的影响呢?

森林的乱砍滥伐不就是一个严峻的问题吗?据调查全世界森林面积正以每年上千万公顷的速度在消失。造成大量的水土流失,使许多地区成为沙漠。人类的活动范围在不断减少,这不可怕吗?

人类除了破坏森林之外,难道就没有什么破坏环境的问题了吗?不是这样的。现在我们应该看到水污染的严重性,目前世界上60%的地区面临供水不足,已有20%的人口难以得到清洁水,51%的人无法得到卫生用水。这是什么造成的呢?是我们人类自己造成的,现在的工厂及我们生活中的污水,没有通过处理就排出去。这不是最好的证明吗?据研究,每排放1立方米污水,就污染14立方米天然水。想一想,这是多么可怕的数字?

在工厂排出的浓烟里,我们不知道浓烟是污染大气的吗?科学家发现,至少有100种大气污染物对环境产生极大危害,直接影响人们的健康。

难道我们想在这种环境中生活吗?当然不想;那让我们用行动来证明吧!我们可以从我做起,从现在做起,从身边做起。树立爱自然、爱护环境的意识吧!来做宣传环保的使者!让我们一起为保护环境行动起来吧

展开阅读全文

篇17:环境污染的英语

全文共 949 字

+ 加入清单

Where is my home?

Some fish are forced to leave polluted water and are flying in the sky. But unfortunately, air is also so polluted that they have to wear masks. Each of them is crying, “Where is my home?” What a terrible sight!

Mankind has brought so much pollution. Waste is being poured into rivers and seas. Poisons to kill pests in farming and chemicals go into rivers and seas, too. Poisonous gasses from factories also make the air so dirty. The whole balance of nature is being destroyed as a result of our ignorance of the environmental protection.

Personally, man can not live alone on the earth. Should fish die from serious pollution, so would man! It is high time we did something to prevent such a scene from happening.

【译文】

何处是我家?

一些鱼类被迫离开受污染的水,并在天上飞。但不幸的是,空气污染,也使他们不得不戴上口罩。他们每个人都在哭,“我的家在哪里?”这太可怕了!

人类带来了如此多的污染。废物被排入河流和海洋。毒药杀死农业害虫和化学品进入河流和海洋去,太。从工厂有毒气体也使空气这么脏。整个自然界的平衡被毁坏了我们对环保的无知造成的。

就个人而言,人不能独自生活在地球上。如果鱼死了严重的污染,将男人!现在是时候我们做了一些,以防止发生这样的场面。

展开阅读全文

篇18:有关污染英语作文高中

全文共 662 字

+ 加入清单

Recently, a Chinese student who studied abroad delivered a speech at the

graduate ceremony. Her speech soon became the hot issue, because she criticized

Chinese air pollution, which was a great threat to her health. Though her speech

had exaggerated the problem, it is true that China has faced many pollution

problems. The haze in Beijing is famous around the world, which is the

punishment for human to ruin the environment. It needs time to fix the problem,

but there is no need to deny our country. Even for the developed countries, they

have once faced such problem before. We can do something in the daily life to

protect it, such as do not throw away the rubbish.

展开阅读全文

篇19:大学英语作文环境污染

全文共 1198 字

+ 加入清单

In this picture a man rudely opens a garbage can and violently throws all kinds of waste into it. however, the box is not an ordinary trash can, but is, as a matter of fact, the earth. it is where survive, breed, and prosper. but as the drawing indicates, earth does not receive an equal repayment. quite the contrary, one of the biggest "gifts" humans return to earth is an unbelievable amount of trash.the picture purposefully points out a kind of pollution that arouses little public attention, that is, garbage. the past century has witnessed an unprecedented increase in garbage output, most of it technological products that are difficult to be decomposed through natural processes, such as plastics and glass. furthermore, a recent report released that several major chinese cities are already surrounded by circles of trash in the suburban areas, polluting air, water, and earth.

Hence, the issue of waste pollution needs to be addressed as one of the priorities that demand social efforts. only through a holistic system of trash disposal can this problem be fully solved. moreover, we should advocate a more frugal lifestyle so as to reduce the growing scale of waste pollution.

[大学英语作文环境污染

展开阅读全文

篇20:关于环境污染的英语

全文共 1049 字

+ 加入清单

each year there is an increasing number of cars on the roads as millions of new cars are produced. one out of six americans works at making cars, driving trucks, building roads or filling up gas. americans couldnt live without cars!

most americans would find it hard to imagine life without a car. however, some have realized the serious problem of air pollution caused by cars. the polluted air becomes poisonous and dangerous to health.

one way to get rid of the polluted air is to make a car without pollution. but to build a clean car is easier said than done. progress in this field is slow.

another way is to replace car engines with something else. inventors are now working on steam cars as well as electric cars. many makers believe that it will take years to develop a practical model for us.

to prevent the world from being polluted by cars, we have to make some changes in our lives. americans, for example, have to cut down on the number of their total cars.they are encouraged to use bicycles, which are thought to help keep the air clean.

展开阅读全文