the river is serious----.lots of fish have died

问题描述:

the river is serious____.lots of fish have died
1个回答 分类:英语 2014-11-16

问题解答:

我来补答
polluted 被污染
这条河污染很严重.很多鱼死了.
 
 
展开全文阅读
剩余:2000