翻譯

Pollution is any chemical or physical change in the environment that is harmful to humans or other living organisms. Pollutants can enter the environment naturally, such as form volcanic eruptions, or through human activities, such as burning coal and gasoline.
污染是在對人或者其他活著生物體有害的環境方面的任何化學或者物理變化。 污染物能自然進入環境，像火山爆發那樣的形式，或者透過人活動，例如燃燒煤和汽油。