So if you had some number back in grade school like 123, well, why do we express this as 123?

在小学，像123这样的数，为什么我们要表达成123这样的呢？

哈佛公开课 - 计算机科学课程节选

So I think it is important to keep this in mind and I'm gonna be coming back to this a number of times as we talk about the experiments we were doing at the Soen School of management.

你们要牢记这一点,因为之后,我们会谈到这个问题,做的实验时,我会反复提到这个内容。

麻省理工公开课 - 媒体、教育、市场课程节选

He came out number one in the United States as business school professor.

结果在所有美国商学院教授中,他排名第一

耶鲁公开课 - 金融市场课程节选