我们下午有两节课。

We have two lessons in the afternoon.

下午，我们还有两节课，然后放学。

In the afternoon, we have two more lessons before school finishes.

上两节课的几个重点

A couple of highlights from the first two lectures

天哪，我才缺了两节课就跟不上了。

God, I only missed tweo classes and I'm already out of it.

老师要求我们在这两节课内写一篇作文。

Teacher asks us write an essay during the two classes.