Running is a whole body movement_700字
关于健身的英语作文

        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 circulatio    （共 848 字）     [阅读本文] >>