在上课时不要向外看。
中国教育部宣布，学校应该禁止学生在上课时间携带手机。
The Education Department of China has announced that schools should ban students from carrying mobile phones during school hours.
一位专家表示，在上课时间使用手机会分散学生的注意力。
An expert said mobile phone use was a distraction to students during school hours.
在上课时用玩笑话打断老师是不礼貌的。
It is impolite to interrupt teachers with jokes during class.
在上课时你应该仔细听老师讲课。
他因在上课时吸烟而被开除了。
老师告诉他不要在上课时做鬼脸。
有一次我们发现他在上课时打盹。
从前她常在上课时画每个人的滑稽相。
She used to draw funny pictures of everybody during lessons.
在上课时不要让自己的思想开小差。
补习令我在上课时感到疲倦。
这个小男孩在上课时睡着了。
如果你不得不在上课时离开，那就悄悄地走。
——真的很抱歉。我在上课时，车被人偷走了。
I'm really very sorry but it was stolen while I was at school.
苏：或许你应该在上课时帮他重新写这首歌……
Sue： Maybe you should help him rewrite this song during class……
别在上课时说话！
他们说使用手机在上课时间通常会导致很多问题。
They say using mobile phones during school hours often causes lots of problems.
如果他头痛，他就叫他妈妈在上课时间带他去看病。
If he had a headache, he asked his mother to take him to the doctor during school hours.
好啦。这只是开胃菜，我保证在上课时会提到更多。
Alright. This is just to get us started. more to be addressed in class, I promise.
休息不好甚至使我们在上课时无法集中注意力听讲。
We can't even pay attention to what the teacher says in the class.
而且要在孩子能够在上课时集中精力的时候安排辅导课程。
Also arrange the tutoring at a time when he can concentrate on the sessions.
如果你不得不在上课时离开，请尽量减小中途退出的影响。
If you have to leave during class, please try to minimize the disruption.
星期三上午11点，该学生与49岁的哈维在上课时发生争执。
The pupil became involved in an argument with Harvey, 49, during the lesson, at 11am on Wednesday.
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。
Ms. : With a hall pass, you can go to the ladies' room or wherever you need to go during class time.
大部分教室往往是寒冷的，所以尽量在上课时多穿几件衣服，可以在课堂上调整。
Most classrooms tend to be chilly, so try to dress in layers that can be adjusted during class.
大部分教室往往是寒冷的，所以尽量在上课时多穿几件衣服，可以在课堂上调整。
Most classrooms tend to be chilly, so try to dress in layers that can be adjusted during class.
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