Example:
例子：
As we all know, air pollution has become a serious problem.
我们都知道，空气污染已经成为一个很严重的问题。
Everybody knows air pollution has become a serious problem.
大家都知道空气污染是个很严重的问题。
1.None of us would like to see dirty water and rubbish lying around.
1.没有人愿意看到到处都是污水和垃圾。
Nobody would like to see dirty water and rubbish lying around.
没有人愿意看到到处都是污水和垃圾。
2.We should follow social rules and spit nowhere in public.
2.我们应该遵守社会规则，不应在公共场合吐痰。
We should follow social rules and not spit anywhere in public.
我们应该遵守社会规则，不应在任何公共场合吐痰。
3.We should do everything to protect the environmemt in our daily lives.
3.日常生活中，我们应该竭尽全力保护环境。
We shouldn't do anything to destroy the environmemt in our daily lives.
日常生活中，我们不应该做任何破坏环境的事。
