I have the skeletal structure written up there, I've written it twice and you'll see why in a minute.

我已经把它的骨架结构画在上面了，我画了两遍，等会你就会知道为什么。

麻省理工公开课 - 化学原理课程节选

What I am talking about today, I will not be testing you, but maybe you might pay attention because about a month from now we will ask you a few skill testing questions about it.

我说的是今天，我等会不会测试你，但是你可能会重视了,因为一个月之前,我们问了你关于一些测试的技能。

麻省理工公开课 - 固态化学导论课程节选

You might be asking where the 2 p z orbital is and we'll get to that soon once we need it.

你可能会问2pz轨道在哪里,我们等会就会讲到这个问题。

麻省理工公开课 - 化学原理课程节选

We have 266 ping-pong balls, and we need someone, hopefully you, to be some radioactive material that are going to be emitting these ping-pong balls. And when the time comes, in just a minute, I'll ask the TAs to come down and hand these out very quickly to you, so we can do this experiment.

你们有些人那天，看到我在办公室数乒乓球，我们需要几个人,希望是你,来作为放射材料，放射这些乒乓球,等会我会让助教,把这些球发给你们。

麻省理工公开课 - 化学原理课程节选