中国成为第五个独立发射卫星的国家。

China became the fifth country to launch a satellite independently.

youdao

他被要求找出第五个句子。

He was asked to find the fifth sentence.

youdao

youdao

There's no language in the world that has a rule that says the fifth word has to be a verb.

世界上并没有语言规定,说第五个词必须是动词

耶鲁公开课 - 心理学导论课程节选

I'm going to come back to that in a second with that, but I need to do one more example, and I've got to use my high-tech really expensive props. Right. So here's the fourth or fifth whatever we're up to, I guess fifth example.

并且我会用到我的,高科技的昂贵小道具，好，这是第四个还是第五个了？,好，我猜是第五个例子了,这是个被称为汉诺塔的问题。

麻省理工公开课 - 计算机科学及编程导论课程节选

And we talked about a triad being a configuration of three pitches where you take the first, the third and the fifth.

三和弦是由三个音高配置成的，你们可选取第一，第三和第五个音。

耶鲁公开课 - 聆听音乐课程节选