上课要认真听讲。
Second, attends s class must listen when teacher speak examples. The basic concept of things can not listen to, but you need to listen to how knowledge is practiced.
第二，上课在老师讲例题的时候一定要认真听，基本的概念性的东西可以不听，但把知识运用于实践是一定要听的。
First, we must listen and read carefully in class.
首先，我们上课时必须仔细地听讲和阅读。
First, you must listen to the teacher carefully, it means less work after class.
首先，你必须认真听老师讲课，这意味着课后作业少了。
Stop and listen to me. Our class have a picnic tomorrow. I have signed your name, so you must go.
停，听我说。我们班明天去野炊，而且我已经替你报名了，因此你必须得去。
You must listen to the teacher carefully and take notes in class.
在课堂上，你必须认真听老师讲，并记好笔记。
You must listen to your teacher carefully in class.
上课时你必须认真地听老师讲。
Don't listen to music and play games in class. We must listen to the teacher carefully in class.
课堂上不要听音乐或玩游戏，上课时我们必须认真听老师讲课。
First, we must work hard, listen carefully in class and finish homework on time, and do some housework on the weekend.
第一：我们应该好好学习，上课认真听讲，按时完成作业，周末回家完成力所能及的家务劳动。
About studying, must finish our homework every day and we we must listen to the teacher carefully in class.
关于学习，我们应该每天都完成作业，我们也必须认真听课。
About studying, we must finish our homework every day and we must listen to the teacher carefully in class.
关于学习，我们应该每天都完成作业，我们也必须认真听课。
Mr. Brown: What are you to talking about? It's class time. You must listen or you can stay after school.
你们两个说什么呢？现在在上课。好好听讲，不然放学后留下。
First of all we must listen carefully in class.
首先，我们在课堂上必须认真听课。
We must listen carefully in class.
我们在课堂上必须认真地听。
You must listen to the teacher in class.
你上课必须听老师。
About studying, we must finish our homework every day and we must listen to the teacher carefully in class.
关于学习，咱们大概每天都完结作业，咱们也有必要仔细听课。
In class, you must listen to the teacher.
在课上，你必须听老师讲课。
You must listen to the teacher carefully and take notes in class.
要做笔记来帮助自己记住老师讲课的内容。
First of all, in class, I must listen earnestly, don't do things, not a good study hard, whispering in students, the new term should set yourself a goal just good.
首先，上课的时候，我要认真听讲，不做小动作，不和同学交头接耳，好好努力学习，新的学期应该给自己订一下目标才好。
You must listen to the teacher carefully and take notes in class.
玛丽认真听着历史老师的每句话，并作详细笔记。
We must listen to the teacher carefully in class .
我们在课堂上必须认真听老师讲课。
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。
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。
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