If you must leave during class, do so quietly.
如果你不得不在上课时离开，那就悄悄地走。
The teacher punished me for talking during class.
老师因为我上课讲话而处罚了我。
Sue： Maybe you should help him rewrite this song during class……
苏：或许你应该在上课时帮他重新写这首歌……
It is considered impolite in the U.S. to eat, drink or chew gum during class.
上课的时候吃零食、喝饮料或者嚼口香糖，这在美国被认为是不礼貌的行为。
To our great amusement, the teacher sang a funny song during class.
老师在课堂上唱了一首滑稽的歌，令我们非常愉快。
上课时讲话是很没礼貌的。
他上课时睡着了。
No talking is allowed during class.
上课时不准说话。
Take notes during class instruction.
做好课堂笔记。
Don't play mobile games during class.
讲堂上别玩手机上的游戏。
Dan could hardly concentrate during class.
阿丹在课堂上难以专心。
Don't be late, and don't leave during class.
上课不迟到，中途不外出。
Class participation is very important during class.
在课堂上积极参与是非常重要的。
We can hear them laughing during class and recess all the time.
无论课上还是课间，我们总是不难听到孩子们的笑声。
Taking notes during class helps me remember what the teacher said.
课堂上做笔记帮助我记住老师的讲课。
Keep to yourself during class if the other kids are fooling around.
课堂上如果别的小朋友起哄玩闹的话，你还是要乖乖坐好。
Paul: I think the teacher saw you sending text messages during class.
保罗：我觉得老师刚刚有看到你上课传简讯耶。
Please be on time for classes and listen carefully during class times.
请按课表时间准时参加课程，上课时请认真听讲。
If you have to leave during class, please try to minimize the disruption.
如果你不得不在上课时离开，请尽量减小中途退出的影响。
This paper reports the research method and results of pupils' meal during class break.
本文报告了小学生课间加餐食品的研制方法及结果。
You may bring a bottle of water to class. You may not leave for a drink of water during class.
上课时请准备水壶，课堂中不能为了喝水离开教室。
Ms. : With a hall pass, you can go to the ladies' room or wherever you need to go during class time.
渥克老师：拿着通行证，在上课时间你可以去洗手间或任何你需要去的地方。
As a result, I was always feeling down during class.
因此课堂上我经常觉得情绪低落。
During class, do not eat, drink, or chew gum unless allowed.
上课时不可在教室吃东西、喝饮料或嚼口香糖。
During class, he would never say a word, quietly like a shy girl.
上课时，他总是一言不发，安静地像一个含羞的小姑娘。
During class, he would never say a word and was quiet like a shy girl.
上课时，他总是一言不发，安静地像个害羞的小姑娘。
During class, he would never say a word and was quiet like a shy girl.
上课时，他总是一言不发，安静地像个害羞的小姑娘。
应用推荐