无论他们如何选择，我们都必须接受他们的决定。

Whichever they choose, we must accept their decision.

《牛津词典》

客人离开俱乐部时，你必须为他们签退。

You must sign guests out when they leave the club.

《牛津词典》

职员必须到他们平常的岗位报到上班。

Staff must report for duty at their normal place of work.

《柯林斯英汉双解大词典》

They might have to be formulated as very small steps, in order to do that, but you could.

他们那被构造出来，这些过程必须很小，这好像很难，但实际上是可以做到的。

麻省理工公开课 - 热力学与动力学课程节选

And you're telling them about what's useful in life, what you need to do in life.

你在告诉他们生活中什么是有用的，什么是你们必须做的。

It's important 课堂 - SpeakingMax英语口语达人

most chemical and biological systems aren't that simple precisely because you have to worry about many particles and their statistics and the way they might order or disorder.

大多数化学或者生物系统并不是这么简单,因为你必须担心大量的粒子,和他们的统计特性以及它们有序,和无序的情况。

麻省理工公开课 - 热力学与动力学课程节选