To this class of substance belong mica, porcelain, quartz, glass, wood, etc.

属于这类物质的有云母、瓷器、石英、玻璃、木材等等。

《新英汉大辞典》

This class of environment includes the Development environment.

这一类型的环境包括开发环境。

youdao

Younger people can use this class of medicine with limited risks.

年轻人使用这类药物风险较小。

youdao

This writer is best known for his novels about the private lives of small-town, middle class Americans.

VOA: special.2009.12.27

So many of them would have gone up to Jerusalem and a real tension is going to develop between the Jerusalem priests and this class of Levites who are newcomers; and we'll see some of that tension played out in some other texts.

他们中的许多人将去耶路撒冷，一次真正的紧张状态,将在耶路撒冷的牧师和这些新来的利未人,中逐渐发展起来;我们将会在其它的经文中,看到一些这种紧张状态。

耶鲁公开课 - 旧约导论课程节选

That's why there's a lot of emphasis on sharpening your teeth by doing this class of problems.

这就是为什么强调要通过解决这些问题,来提高你的能力

耶鲁公开课 - 基础物理课程节选

In contrast, Mr Murray has nothing against this class of good parents and good neighbours.

ECONOMIST: Lexington

And, on top of all this, this class of drugs risks shortening the lives of people with dementia.

BBC: Please Look After Dad

Only last year the trade press and market-research firms were celebrating this class of software as a godsend.

ECONOMIST: Always-on people