﹣﹣﹣ To our eyesight，we'd better relax for a while after reading for a long time.
﹣﹣﹣ I agree with you.
A．harmB．protectC．examine
﹣﹣﹣ To our eyesight，we'd better relax for a while after reading for a long time.
﹣﹣﹣ I agree with you.
A．harmB．protectC．examine
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