These students always sing an English song before class.

这些学生总是在课前唱一首英文歌。

The student on duty should hand out the exercise books before class.

值班生应该在上课前分发练习本。

Let me finish this diagram I started before class.

让我把这张课前画的图画完。

Before class, review your notes you have taken before you come to class.

课前复习来上课前做的笔记。

Before class ended, one student asked if the last question would count toward our grade.

下课前，一个学生问最后一个问题是否算在我们的分数里。

Run through your notes before class.

上课前把笔记复习一下。

I have to bat out a term paper before class.

我必须在上课前匆匆写出一篇学期论文。

He told us a story full of humor before class.

他在上课前给我们讲了个非常幽默的故事。

Next time maybe we'll charge it up before class.

下一次或许我们，会在课前把它充上电。

Please tune up your instruments before class.

请在上课前调好乐器的音调。

One day before class, Megan's father asked to talk to me.

一天上课前，梅根的父亲找来说想跟我谈谈。

LL: I read the reading assignment just an hour before class began.

上课前一小时看看指定阅读些什么材料你就去上课啦！

I always preview and master the main idea of the lesson before class.

我总是预览和掌握这一课上课前的主要思想。

Before class, several of us dashed over to the store and sold our books.

考试前，我们几个赶忙跑到书店把书卖了，随后，我们坐在教室里等着考试。

Yesterday, before class starts, she walk up to Mr. Edward's desk and goes, ‘Good morning, Jim.’

昨天上课前，她走到爱德华先生的讲台前说：“早安，吉姆。”

Before class starts or at home, if you know what the lecture is on, try to read the chapter before class starts.

在课程开始之前或者是在家里，如果你知道这个课要讲什么，试着在课程开始之前看看这章的内容。

Before class, the teacher will hand some relevant materials to us and require us to prepare well for the course.

每周课前老师都会发相关资料给我们，让我们准备，然后上课时再进行小组与小组间的谈判活动。

I thought I could get up earlier to go to school the next morning so that I could finish my homework before class.

我想第二天早点起来到学校，以便上课前完成作业。

So, these things here that you have in your hand, is the results of my spontaneously going to staples before class.

你们手头上东西，都是我们在上课前买到的。

PLEASE, make sure you tell the instructor BEFORE class if you are injured, have past injuries that need to be considered, or have any other health concerns.

请确保在上课以前告诉你的导师你是否受过伤，或者是有其他健康上的问题。

With a gentle look on her face, she paused and said, "Before class is over, I would like to share with all of you a thought which I feel is very important."

她脸上带着温柔的表情，稍稍停顿了一下，便开始讲话：“在放学前，我想跟你们分享一种我认为很重要的想法。”

He recorded the class rehearsing before the performance.

他录下了演出前班级的排练。

He'd never been in a class before and he was not even sure that he should have been teaching.

他以前从未讲过课，他甚至不能确定自己是否应当从事教学。

I had just enough time to finish eating before the bell rang and I was off to my first class.

我在铃响前刚好有时间吃完，然后就去上第一节课了。

My biology teacher, Mr. White, came to the classroom five minutes before the class began.

我的生物老师怀特先生在上课前五分钟来到了教室。

Before each math class, I see her either helping the class at the front, or bringing the homework of the class together.

每次数学课前，我都看到她要么在前面辅导同学，要么就是在把全班的作业整理在一起。

You're taking a journalism class and you've done some reporting before in high school, right?

你在上新闻学的课，且以前在高中做过一些报道，对吗？

Check the markers before the class.

上课前检查一下麦克笔。

Did you preview before the class?

你在上课前有预习的吗？