listen carefully in class .认真上课，上课认真听讲。
例句：
First of all we must listen carefully in class.
我们在课堂上必须认真听课。
相关介绍
Listen carefully in class and review timely after class.
请问上课认真听讲，课后及时复习英文如何写，谢谢！
The teacher meant that you must listen carefully in class.
老师的意思是你上课必须认真听讲。
From then on I listen carefully in class, go home to review carefully.
从此我上课认真听讲，回家认真复习。
Before class I prepare new lessons to find out the questions. Then I will listen carefully in class.
课前预习新功课，找出问题，然后在课上认真听。
I also want to listen carefully in class, good thinking. But the reality is that classes go to sleep.
我也想上课认真听讲，下课好好思考。可是现实就是上课睡觉下课疯。
