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

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。

youdao

They are interesting for the fact that they are very plain and undecorated for the time, with only one plain central panel at the back and no armrests.

很有趣的是，当时它们很普通，没有装饰，只是后面有一个简单的中央面板，没有扶手。

youdao

Orbison wasn't inspired by the goal, and only ever achieved one hit with the Sun label.

奥比森并没有受到这个目标的鼓舞，他在 Sun 品牌只取得过一次成功。

youdao

The I.M.F.predicts developing economies will continue to grow for the year, but only by about one and one-half percent.

VOA: special.2009.04.24

And then secondly, UCLA was one and the only program that focus primarily on

其次，UCLA的这个项目是唯一一个主要关注

大学也在这里 - SpeakingMax英语口语达人

If he's not one but not the other,and if he's not both, the only other possibility is that he's neither.

如果他不是非此即彼，如果他不同时是两者，那么剩下的可能性就是，他两者都不是。

耶鲁公开课 - 死亡课程节选

The CBS Television Network continues to be number one and the only network to be up in viewers this season.

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That last reason could easily be number one and the only reason.

FORBES: Euro's Next Move In The Hands Of The Eurogroup

We all have to lead our own life, and we have only the one life, and the only people who can live life not according to their own desires are those who have no desires which is the majority, actually.

NEWYORKER: While the Women Are Sleeping