And in terms of thinking about it for organic chemistry or if you're interested in thinking about the mechanism maybe by which it is toxic, a first step would be to draw its Lewis structure.

而为了在有机化学中思考它,或者如果你对它,有毒的机理感兴趣的话，第一步要做的应该就是画出它的路易斯结构。

麻省理工公开课 - 化学原理课程节选

So, you can confirm that for yourself at home, but in fact, if I draw a straight line, this will actually be correct.

你要是不信回去自己验证一下,事实上我画成直线,是绝对正确的

耶鲁公开课 - 博弈论课程节选

We may be in a recession now; a lot of people are saying that, so I would be tempted to draw a new line here, somewhere around here, maybe December of 2007.

也许现在正在经历衰退,人们普遍这样认为,所以我想在这画条新的直线,画在这附近,也许是2007年12月

耶鲁公开课 - 金融市场课程节选

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