这种恐惧机制对所有动物的生存都至关重要，但没有人能肯定人类以外的动物是否知道自己在恐惧。

This fear mechanism is critical to the survival of all animals, but no one can say for sure whether beasts other than humans know they're afraid.

youdao

这门课教的是理论，但没有任何东西能代替实践经验。

The course teaches you the theory but there's no substitute for practical experience.

《牛津词典》

尽管有很多黑客能创业，但没有人会投资他们。

While there are plenty of hackers who could start startups, there's no one to invest in them.

youdao

Could I have a show of hands of people who are planning to buy the text but haven't done so yet?

你们能举下手吗，那些,正打算买书，但还没有买的同学？

麻省理工公开课 - 固态化学导论课程节选

Comus She discusses what she would like to say in response to Comus, but she doesn't then go on significantly to say it.

她思考着她能说什么去回应，但她没有说下去。

耶鲁公开课 - 弥尔顿课程节选

These are all plausible reasons and possible contributors but nobody's got the home run answer yet.

这些原因听起来都很有道理,但还没有人能给出准确的答案

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选