On one level, there are things like companies that have two . different classes of stock that are economically identical.

一方面，我们有这样的例子，有的公司拥有两种,不同类别的股票，他们在经济意义上是相同的。

耶鲁公开课 - 金融市场课程节选

In terms of diversification, there are half a dozen asset classes with weights that range between 4% and 28%.

投资多元化方面,投资于六中不同的资产类别,权重从4%至28%不等

耶鲁公开课 - 金融市场课程节选

We're going to consider first of all the view of the gods, The view of humans and the view of the world: three distinct categories.

首先我们来考虑对神的看法，对人类及世界的看法：,三种截然不同的类别。

耶鲁公开课 - 旧约导论课程节选

Are we eating too much or too little of these different classes of sugars?

那我们是过多还是过少地,摄入了这些不同类别的糖类呢

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

We organize it into groups.

我们把节拍分成不同的类别

耶鲁公开课 - 聆听音乐课程节选

Just as a note, I cued you about the level of detail I'm expecting you to acquire from class and from the readings, and I'm not so interested that you memorize those particular sugars and which category they fall under, but it is interesting to know that there are different types of sugars.

温馨提示,我会告诉大家我希望你们,能从课堂和阅读中学到的知识深度,我并不要求大家记住这些特殊的糖类,以及他们都属于哪个类别,但是知道有不同类型的糖是有必要的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选