So the need to quickly recognise things that could be helpful or harmful could have had a great influence on rock art and explain why some images are more common across cultures than others.

因此，快速识别事物是有益还是有害的需求可能对摇滚艺术产生了巨大的影响，并解释了为什么一些形象在不同文化中比其他的更常见。

youdao

Any waste that is not wet, recyclable or harmful will go to the "dry waste" bin.

任何不是湿的、可回收的或有害的垃圾都将被放入“干垃圾”垃圾箱。

youdao

Is speculation beneficial or harmful to society?

投机活动对社会是有益还是有害？

youdao

Surprisingly, people in their seventies and eighties were least likely to report feeling negative or harmful emotions.

VOA: special.2010.08.03

We know what censorship is. Censorship is the banning of books that have been published and that have been deemed by the state authorities to be dangerous or harmful in some way.

我们知道什么是控制，控制就是,禁止已经出版的书籍和被政府认为,在某些方面非常危险和有害的。

耶鲁公开课 - 弥尔顿课程节选

when you want someone to, not to do something that's going to be harmful or uncomfortable or strange.

或者你不希望某人做一些有害的，令人不安的或是奇怪的行为。

Don't 课堂 - SpeakingMax英语口语达人

And like all tools, it can be helpful or harmful depending on how we use them.

CNN: Computers can't replace real teachers

An expense of resources that is useless or harmful is worse than the alternative, which is to do nothing, however dreadful that might be.

ECONOMIST: Economics focus

"Nobody really considers it to be dangerous or harmful to pets in any way, and it's certainly not as intensive as livestock fencing, " he said.

BBC: Monima O'Connor, Russell George and William Powell