I ran outside to gossip with my friends who were in my grade four class.

我跑到外面去和我四班的朋友聊天。

youdao

Table 2 identifies the four class types that correspond to the four session scopes.

表2标出了4个类，分别对应于4种会话作用域。

youdao

The three-hour class is divided into four blocks of 45 minutes each.

三小时的课分成四节，每节45分钟。

《牛津词典》

Four teachers and the first class of eighty young women lived and studied in the building when the school opened.

VOA: special.2010.06.27

And so what we ended up doing is the last four weeks of class after we had grounded it in the history of the modern university, understood the structure of it, we had the students select topics that they were really interested in.

所以我们最后选择,在最后四周，在我们了解了,现代大学的历史，理解大学的结构之后，我们让学生们选择一些,他们真正感兴趣的话题。

普林斯顿公开课 - 人性课程节选

For example, the next class at the Naval Academy will include eighteen foreign students, four of them female.

VOA: special.2009.06.04

As well as the 11 stamps of the Doctor, there is a "miniature sheet" featuring a first class Tardis stamp and four second class monsters.

BBC: The extreme stamp collecting of first day covers

Class B holders will likewise get one AMC share for every four Cablevision Class B shares held.

FORBES: Cablevision Board Agrees To Spin AMC Networks To Holders

Ainslie, 27, won gold in the smaller laser class four years ago before stepping up to the Finn class.

CNN: Britain, U.S. share sailing medals