Those who require their phones for some need must get their parents' and teachers' approval and must hand their phones over during class time.
那些因为某些需要得带手机的学生必须取得父母和老师的同意，并且必须在上课期间上交手机。
A quarter of students report that their use of digital devices during class causes their grades to suffer.
四分之一的学生报告说，在课上使用数码设备导致他们的成绩变差。
Surfing the Internet during class doesn't just steal focus from the educator; it also hurts students who're already struggling to grasp the material.
课上上网不仅会抢走老师的注意力，还会伤害到那些本来就对课堂内容理解困难的学生。
To measure the effects of Internet-based distractions during class, researchers evaluated 500 students taking an introductory psychology class at Michigan State University.
为了衡量上课期间上网对学生注意力分散的影响，研究人员对密歇根州立大学修读心理学入门课程的500名学生进行了评估。
One 2013 study of college students found that 80% of students use their phones or laptops during class, with the average student checking their digital device 11 times in a typical class.
2013年的一项关于大学生的研究发现，有80%的学生在课上使用手机或笔记本电脑，在一堂平常的课上，平均每个学生查看数码设备的次数高达11次。
If the student breaks the rule and uses his or her phone during class, the student will be warned.
如果学生违反规定，在课堂上使用手机，将受到警告。
In lots of schools, if a student needs to bring a phone to school, his or her parents will have to write a statement and make sure that the phone is turned off during class.
在很多学校，如果学生需要带手机来学校，他或她的父母必须写一份声明，确保手机在课堂上是关闭的。
It is impolite to interrupt teachers with jokes during class.
在上课时用玩笑话打断老师是不礼貌的。
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。
上课时讲话是很没礼貌的。
他上课时睡着了。
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。
Dan could hardly concentrate during class.
阿丹在课堂上难以专心。
The teacher punished me for talking during class.
老师因为我上课讲话而处罚了我。
As a result, I was always feeling down during class.
因此课堂上我经常觉得情绪低落。
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……
If you aren't actively learning during class, you're wasting time.
如果你在课堂上面并不是很积极的，那么你就是在浪费时间。
If you mouth off during class you will be in a lot of trouble.
如果你在上课的时候大发议论，你会有很多麻烦。
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。
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。
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。
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。
I tried all kinds of medical adhesive - more than once it fell off during class.
我试过各种粘合剂，可假耳还是在课上不止一次地掉下来。
During class creation, attributes and methods of classes are set once and for all.
创建类的过程中，类的所有属性和方法只设置一次。
A professor should not be annoyed with me if I receive an important call during class.
在课堂上如果我接了一个重要的电话，教授也不该对我恼怒。
It shows a lack of cultural literacy, Lindgren said, that they have to compensate for during class.
这个现象表明了一种熟悉文化的缺失，lindgren说，而他们需要对其在课堂中进行弥补。
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。
She also told me during class about her university life, so I look forward to my future university life.
她还告诉我，在对她的大学生活的类，所以我期待我未来的大学生活。
Ask questions during class, without making a pest of yourself, of course, and answer your share of the questions posed by others.
在上课的时候提问，不会对你自己带来任何伤害，当然，如果别人的提问你知道答案的话，也要积极的回答。
The study involved 108 students, aged 13 to 16, who split into those who chewed gum during class and homework, and those who did not.
研究调查了108名13- 16岁的学生，一部分人在上课和做作业时嚼口香糖，另一部分不嚼。
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