In some classes, only Spanish is spoken, even during the Pledge of Allegiance -- a morning tradition for American schoolchildren.

VOA: special.2010.06.17

Some people have argued there's a module for sociology, for dealing with human groups, races and classes and so on.

有些人认为大脑中存在一个社会学模块,用以面对各种人类团体,种族以及阶级等

耶鲁公开课 - 心理学导论课程节选

So as far as I know, I know that for some computer science classes

所以据我所知，我知道有的计算机科学课

对于未来的技术 - SpeakingMax英语口语达人

So let's look at what some of the traditional methods for classes are in Python.

很奇怪的有下划线的东西,因此让我们来看看Python中,一些传统的方法吧。

麻省理工公开课 - 计算机科学及编程导论课程节选

I had to write some long papers, especially for French classes.

我必须要写一些长篇，尤其是法语课论文。

选择国际学的理由 - SpeakingMax英语口语达人