只有一个人的空间。

There's only room for one person.

《牛津词典》

因为她只有一个人的拇指那么点大。

That was because she was no bigger than the woman's thumb.

youdao

只有一个人的时候我才会哭泣。

Only a person I would cry.

youdao

And I have actually seen evidence over the years, mercifully, just a small amount of evidence, but there are, in a group like this, always a few students who come in with a really strong background in high school.

这几年我已经见到了实例，令人感激的是，只有小部分人，但在这，像这样的一个小组，总有一些来到我们这的学生,在高中打下了良好的基础。

麻省理工公开课 - 固态化学导论课程节选

And then other people are really excited because it's a once-in-a-lifetime opportunity

而另外一些人真的很兴奋，因为这是一个一生只有一次的机会，

正准备奥运会 - SpeakingMax英语口语达人

He said "Steve, you don't get it. We're going to put a computer on every desk, in every home. You didn't drop out of business school to be the bookkeeper of a 30 person company."

他说“史蒂夫，你还没尽力呢,我们要让电脑进入每桌每户，你从商学院辍学又不是为了,给一个只有30人的公司当图书管理员的“

斯坦福公开课 - 微软CEO-Steve.Ballmer谈科技的未来课程节选