第1个回答 2009-01-15
1 Today's pollution has become a serious social problem, air, river, soil pollution on animals and humans is very harmful.
2 Scientists hope to find a solution to restore the original appearance of nature
第2个回答 2009-01-15
These days pollution has become a serious social problem.The pollution of air condition,rivers,oceans,and soil are very harmful to animals and human beings.
We hope scientists find solutions to resume the original appearance of nature.本回答被提问者采纳