我刚刚读了一本书，书中给了我们如何保护环境的建议。

I've just read a book which gives ideas about how we can protect the environment.

youdao

但是，如果我们正确理解环境中的生物体是如何在保护我们的话，也许我们可以用疫苗或利用一些无害的刺激来模仿他们的效果。

But if we properly understand how organisms in the environment protect us, maybe we can give a vaccine or mimic their effects with some innocuous stimulus.

youdao

如何正确评价中国湖泊的污染状况，合理利用湖泊资源，保护生态环境，是摆在我们面前的一个重大课题。

Therefore, it is our great task to objectively appraise the pollution situation of lakes in China, and protect ecology-environment.

youdao