As we all know ,the world develops
more quicker than before. ,Many students use
the mobile phone in the school .Now ,let me
tell you the advantage and the disadvantage .
Many parent thinks use the mobile phone is
bad for students .
more quicker than before. ,Many students use
the mobile phone in the school .Now ,let me
tell you the advantage and the disadvantage .
Many parent thinks use the mobile phone is
bad for students .
题目是什么呢？
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