He noticed that the pigeons started behaving in strange ways and he kept them separate so they couldn't learn from each other.

他发现鸽子行为异常,举止乖张,他把鸽子分开拘禁,使它们不能沟通

耶鲁公开课 - 金融市场课程节选

because there actually is no proof of any social deviance or destruction of people with it.

因为没有证据真正表明同性恋者有任何社会异常行为和破坏力。

给我结婚的自由 - SpeakingMax英语口语达人

Error is not a deviance from truth. Right?

错误并不是真理的一种异常行为，对吧？

耶鲁公开课 - 文学理论导论课程节选

So the exceptions are useful when you want to have the ability to say, I expect in general this kind of behavior, but I do know there are some other things that might happen and here's what I'd like to do in each one of those cases. But I do want to make sure that I don't let a value that I'm not expecting pass through.

所以当你希望有能力说,我希望一般是这样的行为,异常是很有用的,但是我明白还有一些其它的情况可能发生,我希望对每一种情况都这么做,但是我跟希望能保证,没有让一个预期之外的情况漏过去。

麻省理工公开课 - 计算机科学及编程导论课程节选