in our society,people's living standards have improved a lot,but more and more teenagers are becoming fatter and fatter.it is a surely serious problem which we need to pay attention to .and we must do sth.
on one hand,we need to encourage students to take part in outside activities.we need to let them know the importance of exercise so that they will become more active.
on the other hand,we need to advise school to hold more activities for students to take part in. the purpose of education is not only pass the exams,but also make students healthier mentally anf physically.
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