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 .
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 .