If I pull the one kilogram mass and I let it go, it does something, some acceleration.

如果我拉 1 千克重的物体并松手,就会获得一个加速度

耶鲁公开课 - 基础物理课程节选

Let's go into the third version of this and then start doing something with these constructs.

让我们进入这个程序的第三版,开始用这些概念来写点东西。

哈佛公开课 - 计算机科学课程节选

N 2 So any chemist should be able to just look at n 2 and know that it's a triple bond, but that's not something that we've learned how did to do yet, so let's go ahead and start a new topic that's going to allow us to have some sort of sense of what the valence electron configuration, which includes whether something's a single or double or a triple bond can be figured out for any given molecule.

任何一个化学家都应该能够仅仅通过看到2,就知道它有一个三键,但是我们还没学习如何做到这点，因此下面我们就开始进入一个新的主题,它将使我们能够有一定的认识,对于价电子的排布情况，包括可以对任何一个给定分子中的键是单键双键,还是三键作出判断。

麻省理工公开课 - 化学原理课程节选

So, let's go ahead and do a little something with these.

我先举几个例子。

哈佛公开课 - 计算机科学课程节选