Sustainable quarrying isn't an option; it's our obligation to future generations.

防止战争最可靠的方法是不惧怕战争。

I like dogs. You always know what a dog is thinking. It has four moods. Happy, sad, cross and concentrating. Also, dogs are faithful and they do not tell lies because they cannot talk.

如果我们今天不对塑料废物负责，我们将给后代留下难以承受的负担。

不要被他人的意见所影响。