On Tuesday afternoons we have an informal singing class, which most of the residents attend.

星期二下午我们有一个非正式的歌唱班，大多数居民都参加了。

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When I was about to stop running and quit the race, I heard the whole class cheering me on, which gave me great strength to continue.

当我就要停下来不跑放弃赛跑的时候，我听到全班的人都在给我加油，这给了我力量继续比赛。

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It is then possible to calculate the vehicle's direction and speed, which can help identify the class of road on which it is travelling.

之后还可能计算出汽车的方位和速度，这样就可以确定它走的是什么类型的道路。

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The idea for the book on death row originated with Sam Houston State University English Professor Paul Ruffin, who teaches a class in which students develop a book from inception to printing.

VOA: standard.2009.10.21

It depends on which class you take

要看你上什么课了。

要考入大学 - SpeakingMax英语口语达人

I want to mention that 5 you're going to get problem-set five is posted today, and I'll write which ones you can already do so far, because you don't have class on Monday.

我要指出的是,今天会贴出来习题集，我会给出你们现在可以做的题目，因为周一没有课。

麻省理工公开课 - 化学原理课程节选

When due allowance was made for habitat differences, they found that species which relied on a class of chemicals called carotenoids to tint their feathers fared worse when there was more radioactivity around.

ECONOMIST: How an industrial accident has helped evolutionary theory

Surprisingly, this did not depend on the class in which passengers travelled, the amount of fluid or alcohol they consumed, whether they smoked or whether they took sleeping tablets (thereby reducing their mobility).

ECONOMIST: Deep-vein thrombosis: Causing trouble | The

The group obviously has a vested interest in cutting down on class actions, which target the employers of its members.

FORBES: Corporate Lawyers Scratch Their Heads Over Citi Class-Action Fees