用英语写一篇关于跑步的作文800字【汇编2篇】

Runningis a whole body movement, which enables the bodys muscles rhythmic contraction and relaxation, so that muscle fiber

Dimension increased, protein content increased. Fit and muscular is one of the symbols.

Skeleton is the body of the stent, human activities leverage. In a period of growth and development of young people, adhere to running

Step can improve blood circulation, increase the supply of nutrients in bone cells increase bone cell growth capacity, from the

And to promote the normal development of the bone. The elderly, reduced metabolism, muscle gradually shrink, and bones appeared back

Line of change in bone and joint disease is also increasing. Persist in running can enhance metabolism, delayed bone

Degenerative changes, prevention of bone and joint disease in the elderly occur, so that you slow down aging.

Running is a whole body movement,which enables the bodys muscles rhythmic contraction and relaxation,so that muscle fiber

Dimension increased,protein content increased.Fit and muscular is one of the symbols.

Skeleton is the body of the stent,human activities leverage.In a period of growth and development of young people,adhere to running

Step can improve blood circulation,increase the supply of nutrients in bone cells increase bone cell growth capacity,from the

And to promote the normal development of the bone.The elderly,reduced metabolism,muscle gradually shrink,and bones appeared back

Line of change in bone and joint disease is also increasing.Persist in running can enhance metabolism,delayed bone

Degenerative changes,prevention of bone and joint disease in the elderly occur,so that you slow down aging.