Maybe go up to them after the first class, shake their hand, introduce yourself.

也许你可以在下课时走上前，和他们握握手，介绍下自己。

More students in this program study full-time which consists of twenty hours a week.

大多参加这个项目的学生都制学习，每周20课时。

But there's a real high craft side to giving a beautiful lecture on a blackboard.

但上课时能写出黑板漂亮的板书确实需要很高的技巧。

The one Prof. Lee uses in his course.

李教授上他课时用的书。

He didn't finish his homework yesterday and he was sleepy in class just now.

他昨天没有完成作业，刚才上课时打了。

But you'll feel hungry during your lessons if you don't eat anything.

但如果你不吃东西的话，上课时会觉得饿的。

As punishment you are to write, " I must not sleep in class" 100 times.

我要罚你写“我上课时绝不可以打”百遍。

At break time, I sent her a message. But Sandy didn't answer.

我在下课时间传了道信息给她，但她没有回复。

But we can end this lesson by wishing you a very happy day.

但，我们可以在结束这节课时祝你度过愉快的天。

Hammering a tree, 20 times a second, ten thousand times a day… face-first.

锤击课时、每秒20下、天10000次......脸先上。

The teacher lets us take a five-minute break during class.

上课时，老师让我们休息五分钟。

Today at school we got assigned to reading groups.

今天上课时，老师给我们分配了阅读小组。

At school today, they announced that student government elections are coming up.

白天上课时，听说学生会竞选即将开始了。

Another said Paul always sat in class with his hands covering his eyes.

另位说，保罗上课时经常用手蒙住眼睛。

Yes, he also said we would discuss it in class.

的，他还说在上课时要讨论下。

She handed the papers out during the next class.

再上课时，她把纸发了下去。

So students come into psychology courses with all kinds of ideas about the guy.

因此，学生们来上心理学课时，对他抱有各种各样的想法。

She even checks it while in class.

她甚至在上课时检查过。

She took care to be extra nice to Joanna during the breaks.

下课时，她特别小心，对乔安比平更好。

Does he often speak up during class?

上课时，他经常发言吗？