Climate change poses the greatest threat to marine life, and we must act now to mitigate its effects.

国君得到了我的学说，就必然会采用。 

解释：有的东西外表华丽而实质不好，有的东西实质很好而外表并不华丽。

Sustainable fishing isn't an option - it's the only way forward if we want to preserve both our industry and our oceans.

我们试图购买不受欢迎的股票。