More and more students short-sighted, 50% of students wear glasses, myopia has two main reasons, on the one hand, students spend too much time playing games, which is very harmful to the eyes, on the other hand, some students read too long and do not rest, these will lead to eye fatigue, first of all, we should use less mobile phones and computers, second, we should go outdoors to enjoy the view, instead of reading at home all day
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