The earth is our home.But nowadays,the Earth is very dirty because some people are polluting the environment.There is air pollution,water pollution,water pollution and land pollution.So we must look after the environment.The friends of the earth always tell people not to leave rubbish. We must promise put rubbish into rubbish bins.
I think our Earth will be more more beautiful in the future!
借鉴一下吧(我是中预年级的)你看一下吧.