One day after class, a student came up to me and recommended traditional Chinese medicine.

有一天课后，一个学生找到我，并向我推荐了传统中医。

youdao

One class that I thought was very interesting and that doesn't relate to my career so much was a family law class.

有一门课是家庭法课程，我认为这门课很有趣，而且它和我的职业关系不太大。

youdao

youdao

I had not gone to one class since arriving in New York.

VOA: special.2009.07.18

One social class does not owe anything to another and we should not feel guilty about pursuing financial interests.

一个社会阶层对另一个阶层并没有亏欠,而且我们也不必为追求经济利益,感到内疚

耶鲁公开课 - 金融市场课程节选

This being a Game Theory class, there's at least one game we have to discuss and we've come to it now.

既然这门课叫博弈论,我们就得学习一下接下来要讲的模型

耶鲁公开课 - 博弈论课程节选

But charters also need to attract one class of candidates who are likely to be very keen on defined-benefit pensions: teachers who have already accrued years of pensionable service in public schools, and who want to keep accruing service so they can reach that rich third decade.

FORBES: Charter Schools, Pensions and Golden Handcuffs

It turned out that some of the best belonged to one class of chemicals.

NPR: Mosquito War: New Chemicals May Beat DEET

Transferring wealth from one class to another to artificially boost real estate prices only delays the inevitable and necessary reallocation.

FORBES: Why The Recession Recovery Remains Anemic