I am in grade two, class five.

我在二年级五级。

youdao

She is in class five, grade five.

她在三年级十班。

youdao

Do you know I have a new friend in Class Five.

你知道我在五班有一个新朋友吗。

youdao

That was when twenty-five students in a class taught by Thomas Zurbuchen first talked about the idea.

VOA: special.2009.02.16

It repays innumerable readings and re-readings, so I urge you to read it seventy-five times, let's say, before you come to class on Monday.

这需要反复的阅读和再阅读，所以我建议你们在周一来上课前，要读七十五遍。

耶鲁公开课 - 弥尔顿课程节选

I have a five-hour sewing class which is really fun. I like it. It's really fun, so.

我有一堂需要持续5个小时的缝纫课，很有趣。我很喜欢。因为真的很有意思。

梦想成为时装设计师 - SpeakingMax英语口语达人

At a kindergarten just outside the capital city Tallinn, a class of five year olds crowd around a PC, searching the internet for cartoon websites.

BBC: Estonia woos the computer age

Those claims were the basis for five class-action lawsuits they brought against the company in the 2000s.

WSJ: LBO, Recession Singe Quiznos

In a Citronelle High School history class recently, five juniors were huddled around laptops and browsing the Web.

WSJ: For the Internet-Deprived, McDonald's Is Study Hall