pollute的所有形式

　　I have no doubt that we are polluting the environment beyond redemption.

　　我丝毫都不怀疑我们对环境的污染是不可挽回的。

　　But this water seems dead: it's polluted and horribly stagnant.

　　但这似乎是一潭死水：受了污染而且恶臭无比。

　　The ground has been polluted beyond recall

　　这片土地已被污染得面目全非。