我努力学习，上课认真听老师讲课，课后多做练习。

I worked hard by listening to the teachers carefully in class and doing more exercises after class.

youdao

要充分利用课上的时间。上课认真听老师讲课，以后就可以少花力气。

Make good use of your time in class. Listening to what the teacher says in class means less work later.

youdao

首先，我上课认真听老师讲课，认真记笔记，课下我复习旧功课，预习新功课。

First, I listen to the teacher and make notes carefully in class. I revise my old lessons and prepare my new lessons after class.

youdao