I'm starting the advanced class.

我开始学高级课程了。

youdao

The painter is in an advanced class. She's been working on this one all semester.

那个人上的是高级班，她整个学期一直就在画这张画。

youdao

Advanced class is really a lot harder than beginners class, the teacher often speaks in Chinese to us.

高级组的课的确比入门课难多了，而且老师跟我们讲话经常用汉语。

youdao

You may run into upper-class students, students who are more advanced, you will run into your TA.

你可能会碰上高年级的学生,他们比你的水平要高,当然还有助教

耶鲁公开课 - 基础物理课程节选

And class size is pretty small if you go up to, you know, advanced level classes.

班级挺小的，如果，你知道，你去上高级课程的话。

要考入大学 - SpeakingMax英语口语达人

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