他是我们班的导师。

He is the trainer of my class.

youdao

他是我们班的尖子生，总被老师夸。

He is the head boy of our class, and is frequently praised by teachers.

youdao

他是我们班的新同学。

She's a new student in our class.

youdao

Again welcome back to Professor Stan Katz Drew Frederick and welcome to Drew Frederick, who is a class of seven, graduating, but who is very instrumental in a class that I want to talk about today, which is called the Just University.

让我们再次欢迎Stan，Katz教授,还要有请，他是七班的毕业生，在一门课上起到了重要的作用,我今天就像谈一下这门课，课程叫做，公正的大学。

普林斯顿公开课 - 人性课程节选