接下来我们来练习倒桩停车。

Next we will practice reverse parking.

youdao

让我们来练习几个例子吧！

Ok, let's practice some examples!

youdao

明早在其他人来之前先到这里，我们来练习一下。

Come in early tomorrow morning, before the others get here and we'll practise.

youdao

So now that we have enough practice drawing Lewis structures let's talk about actually figuring out this formal charge.

那么现在我们已经做了足够多的画路易斯结构的练习,让我们来讨论一下如何得出形式电荷。

麻省理工公开课 - 化学原理课程节选

We could begin to put a certain amount of pressure on the text and possibly, as I say, - begin to do things with it which are kind of a five-finger exercise-- -- we'll be doing a lot more of that sort of thing--but which might work.

开始时我们应该对文本抱有一定的怀疑,就像我说的，用一种五指练习法来做-,以后我们会大量涉及到这种练习。

耶鲁公开课 - 文学理论导论课程节选

So if we do this and we form the molecule ammonia, let's switch to a clicker question, and have you tell me what the bond angle - is going to be in ammonia -- HNH Actually, let me draw it on the board as you look -- actually, can you put the class notes on, since you don't actually have your notes to refer to.

如果这样做的话，我们就可以形成氨分子，让我们来做一个课堂练习,你们告诉我氨分子中的键角是多少-,键角，the，h，n，h，bond，angle。,实际上让我在黑板上画出它来，这样你们可以看到实际上-,你能把课堂讲义放出来吗，因为你们没有讲义可以参考。

麻省理工公开课 - 化学原理课程节选