The party tries to appeal to all classes of society.

这个政党尽力吸引社会各阶层人士。

《牛津词典》

I've mixed among all classes of people.

我与各阶层的人都有过交往。

youdao

For all classes of antidepressants, patients must take regular doses for at least three to four weeks before they are likely to experience a full therapeutic effect.

无论何种抗抑郁药物类别，患者必须持之以恒服用3 - 4周，然后他们才可能体验到完全的治疗效果。

youdao

"In Austria,it's more like you have all classes together with the same group of people.

VOA: special.2009.11.05

I said this sentence in one of the first two classes, 'all cells are the same', and you know that's true.

我曾在头两节课的哪里讲过,所有细胞都是一样的,你们知道的

耶鲁公开课 - 生物医学工程探索课程节选

Completely, I did all of my classes in Italian, all of my exams in Italian,

我所有的课程和考试都是用意大利语进行的。

换专业的理由 - SpeakingMax英语口语达人

In particular, mortgages to prime borrowers and fixed-rate mortgages to all classes of borrowers continue to perform well, with low rates of delinquency.

NPR: Bernanke: U.S. Growth 'Moderate' as Inflation Rises

The bearish view from El-Erian of Pimco was that expectations of returns must be reduced on all classes of assets, whether stocks, bonds, commodities, real estate, what have you.

FORBES: StreetTalk With Bob Lenzner

It was an event which excited all classes of people, with Yorkshire miners and their families known to take holidays during the time of the meeting in the 19th and 20th centuries.

BBC: St Leger: How it all began