"It could be taken up by crustaceans like shrimp crabs, things like that which are the base of the food chain and that could be passed up to fish and then mammals and the toxins could be concentrated and that could be harmful to animals that feed on these smaller organisms."

VOA: standard.2010.05.09

when people are behaving in ways that can be harmful to themselves.

当人们在做一些可能会伤害到自己的行为时，

I'm worried 课堂 - SpeakingMax英语口语达人

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

Stress is more likely to be harmful if you feel helpless to deal with the problem or situation that causes the stress.

VOA: special.2009.03.24

And also, it's useful because harmful stimuli are noticed but when something has shown itself to be part of the environment you don't notice it anymore.

而且它还是非常有用的,因为危险刺激会吸引到你的注意,但当某物被视为环境的一部分时,你便不会再去注意到该物体。

耶鲁公开课 - 心理学导论课程节选

At least two hundred fifty of them are known to be harmful.

VOA: special.2010.03.09

So if you could stop a tumor from being able to develop blood vessels you might be able to stop its growth at a stage where it's not harmful.

所以,如果我们能通过阻止血管的生成,来阻止肿瘤的发展,就可以在肿瘤还处于良性阶段时扼制它

耶鲁公开课 - 生物医学工程探索课程节选

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