一周后的星期二是我的生日。

It's my birthday a week on Tuesday.

《牛津词典》

星期二是晴空万里、风和日丽的一天。

Tuesday was a fine, clear and calm day.

《柯林斯英汉双解大词典》

这个方法有两个优点：一是更便宜，二是较快。

This method has two advantages: first it is cheaper and second it is quicker.

《牛津词典》

And, likewise, if we look at fluorine in its diatomic molecule, it is 160 kilojoules per mole.

一样的，如果我们观察二价的氟，它是每摩尔160焦。

麻省理工公开课 - 固态化学导论课程节选

We talked about mitosis last time; it's described more completely in the chapter, where two cells are formed from one.

我们上节课说到过有丝分裂,在那一章里更详细的阐释了,细胞是怎么由一生二的

耶鲁公开课 - 生物医学工程探索课程节选

A second point is it's beautifully written and you're not also, not allowed to write that way anymore either.

二是，这描述的很美,你不能,同样，不允许你以这种方式写。

耶鲁公开课 - 心理学导论课程节选