More than half of the students hold the view that physical exercise can build up our bodies,lessen the possibility of being ill。What‘s more,it is good for us to rest our brain,thus enhancing our review efficiency. Meanwhile,the others,that is to say,less than half of the students,hold the opposite opinion.They think it is a waste of time to do exercise,and it makes people fatigued,making people difficult to concentrate on study,and at the same time,probably will hurt them. In my opinion,appropriate exercise is of gg great enefit to us. 我自己写的哦!虽然不够专业,希望对你有用,谢谢!