求一篇英语作文 怎样保持我们的城市空气
问题描述：
求一篇英语作文 怎样保持我们的城市空气
答
Protect our enviorment The earth is our home,we must take care of it.We shoule make a less pollution as we know everybody in north America makes 1000 kilograms of the garbage everyday.Most of it is pa...