"No,we can't start over because if we start over life will be over for too many Americans."

VOA: standard.2010.03.10

So, if we think about the bonds that are forming -- oh I see our TAs are here, so you can start handing them out, because we have two minutes left to go.

如果我们考虑所成的键-,我看到助教们都来了，你们可以开始发讲义了，我们还有两分钟就下课了。

麻省理工公开课 - 化学原理课程节选

OK. If we do that, if you look at the handout then, I can now start implementing this.

好，我们开始做，你们可以看看课堂材料。

麻省理工公开课 - 计算机科学及编程导论课程节选

So if we have a third, we can just introduce it like this and so things start to line up a lot more nicely.

所以如果我们有第三个，我们可以像这样引进它,这样代码就排得漂亮多了。

哈佛公开课 - 计算机科学课程节选

Plato's idea is that if we start doing enough metaphysics, we can see there must be this realm of Platonic ideas, Platonic forms.

柏拉图的观点是,如果我们对形而上学有充分的研究,就必能看到柏拉图式的,理念或是型相组成的世界

耶鲁公开课 - 死亡课程节选

So, let's -- okay, so, why don't you all think about would happen -- we'll start with the thought exercise. You can switch back to my lecture notes then if this isn't going.

好吧，那你们想想会,发生什么，我们来想想,这个问题，如果那个不行的话,你可以转到我的讲义上来了。

麻省理工公开课 - 化学原理课程节选

So, if we start instead with talking about the energy levels, we can relate these to frequency, because we already said that frequency is related to, or it's equal to the initial energy level here minus the final energy level there over Planck's constant to get us to frequency.

如果我们从讨论能级开始，我们可以联系到频率上,因为我们说过频率和能量相关,或者说等于初始能量,减去末态能量除以普朗克常数。

麻省理工公开课 - 化学原理课程节选

So what we can say is look at each of these separately, so if we start with looking at the 2 p z orbital, the highest probability of finding an electron in the 2 p z orbital, is going to be along this z-axis.

我们可以来分别看看这些图，首先来看看2pz轨道，在2pz轨道里,找到电子的最大概率，是沿着ｚ轴。

麻省理工公开课 - 化学原理课程节选