港口员工们注意到对同一类小船所给出的尺寸经常不同。

Harbour staff noticed that measurements given for the same class of boats often varied.

《柯林斯英汉双解大词典》

一种图案具有特定的密集度，被归为“密集”类，另一类图案的密集程度不同，但都比第一种的密集程度低。

One type of pattern was of a specific density and was to be classified as dense, while the second type of pattern could vary in density, but was always less dense than the first one.

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初创公司的投资者们是一类与众不同的富人。

Startup investors are a distinct type of rich people.

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You'll notice that a lot of different kinds medications do you have chlorine in them, you'll see that c l group.

你会注意到很多不同类型的药物都含有氯,你会看到这类氯。

麻省理工公开课 - 化学原理课程节选

OK, so as I said, now I can go off and I could create a different class.

好，正如我所说，现在我可以进行下去,去创建一个不同的类了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Generally, you think about the immune system protecting against different classes of pathogens and several classes of pathogens are shown on this table.

大体上,你们会认为免疫系统使,我们免受不同种类病原体的侵害,这个表格里介绍了几类病原体

耶鲁公开课 - 生物医学工程探索课程节选