To attach the preparatory to the senior school these three classes were known officially, on speech days and in reports, as upper, middle, and lower second.

作为高中的预备班，在演讲日和报告中，这三个班被正式称为上、中、下二班。

youdao

In terms of class, digital divide exists among different types of workers and between the upper and middle classes and the lower class.

在阶级方面，不同类型的工作者，以及中上层阶级和下层阶级之间，都存在着数字鸿沟。

youdao

In that era you also had your upper-middle class and your lower-upper class and off on the side were the collar classes, white and blue.

在那个时代，中产阶级也有上部下部之分。此外，也可以分为白领阶级和蓝领阶级。

youdao

GARCIA-NAVARRO: It's an attempt to swing undecided voters, mainly in the lower middle classes, who are viewed as key in this election.

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Robert Irwin, from the School of Oriental and African Studies, says the stories were written to entertain in normal, conversational Arabic of the late Middle Ages - and were aimed at the tradesmen and the lower-middle classes.

BBC: Today

The wealthy were feted while the lower and middle classes were hit right in their pasties.

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