最后，只能有一个假面骑士。

In the end, there can be only one Kamen Rider.

youdao

对于调用流中的每个对象，只能有一个其他对象连接到它。

For every object in the call flow, there can only be one other object connected to it.

youdao

一次只能有一个任务持有互斥锁，并且只有这个任务可以解锁互斥锁。

Only one task may hold the mutex at a time, and only this task can unlock the mutex.

youdao

You've got horses which you need for the army but also which they start slaughtering; you've got cattle but you have enough food to last for maybe a month; there's always a lot to drink because of the caves, that is, the wine cellars that people had, but things get worse and worse.

你有军队所需的马,但是士兵会把马杀来吃,你有牛,但是这些食物只能,维持大概一个月的时间,喝的东西总是不缺的,因为他们有酒窖,就是用来储藏葡萄酒的酒窖,不过事态还是变得越来越糟

耶鲁公开课 - 1871年后的法国课程节选