你是第三个问我那件事的人。

You're the third person to ask me that.

《牛津词典》

有三个问题。头两个相对容易，第三个困难。

There were three questions. The first two were relatively easy but the third one was hard.

《牛津词典》

普约尔的全垒打是本赛季红雀队选手打出的第三个全垒打。

Pujols' grand slam was the third by a Cardinals player this season.

《柯林斯英汉双解大词典》

Third thing to notice is, there's a flow of control. The order which these things are going to happen.

第三件事情就是,我有一个控制流,这些事情有个要做的先后顺序。

麻省理工公开课 - 计算机科学及编程导论课程节选

and this I think only in the USA, New Orleans is the only other city that has cable cars.

并且在美国的其它城市中，除了新奥尔良市，没有第三个城市还有有线缆车了。

旧金山的公共交通 - SpeakingMax英语口语达人

actually our third, but the second one we're going to talk about in terms of formal charge, which is thionyl chloride.

实际上是第三个，但它是第二个,形式电荷的例子，也就是亚硫酰氯。

麻省理工公开课 - 化学原理课程节选