Modern people suffer a lot from deficient sleep for electronic devices, being far away from the nature

如题.

2017-07-08 提问者:ponytailkid

教师解答

尚未回答。

学生讨论

l舒雨鹿晗:

Yes.you are right.

2017-07-08

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jon0630:

of course, you are right.

2017-07-09

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ponytailkid:

So why not change our living styles

2017-07-11

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