功夫的首要原则是自卫。

The first law of kung fu is to defend yourself.

《牛津词典》

功夫的方法并不包含了“强权即公理”。

The kung fu approach does not entail that might is right.

youdao

简洁地讲述一个故事是需要花功夫的。

It takes work to tell a story succinctly.

youdao

We've had a great deal to do with it, but of course we still haven't the slightest idea what it is.

我们花了很大的功夫来接解决这个问题，但我们仍然一点都不知道语言是什么。

耶鲁公开课 - 文学理论导论课程节选

So you're saying that we are here right now but any second this other event, this other situation will occur.

你在谈论我们现在是这样的状态，但是一转眼的功夫，另一种事情，另一种情况就会发生。

I'm about to 课堂 - SpeakingMax英语口语达人

If you didn't really believe that your body was going to die, why would you ever bother writing a will?

如果人们不相信自己的肉体会消亡，为什么要花功夫写遗嘱？

耶鲁公开课 - 死亡课程节选