最近,QQ姐姐收到页很多小朋友的来稿,这些作文都写得非常棒,不过部分作文还是存在不足之处.起来看看吧.Protect the Earth As we know,the Earth is the only home where we can live,study and work.However,with the rapid development of the world,our dear Mother Earth is being polluted seriously.Therefore,I think it is our responsibility to protect the Earth.