Now, you know already, or you could review in Chapter 4 that I provided to you, something about how proteins work.

现在你们已经知道,或者读我给你们看的第四章,就能了解蛋白质的工作原理

耶鲁公开课 - 生物医学工程探索课程节选

So that were clear from the outset: where we are coming from,where I am coming from, and also so that we can build the foundation of the course.

下面这些问题非常明确：,我们从哪里来，我从哪里来，了解这些后我们就能建立本课程的基础。

哈佛公开课 - 幸福课课程节选

If history is any indication 72% of the people ; in the theater have no prior programming experience; despite what you may think and despite the fact that some of you may very well be thinking, odds are I know the least about computers than anyone in here, I'm actually a little scared of my computer.

以往的经验表明,大讲堂里72％的人没有任何编程经验;,不管你们怎么想,有些人可能现在就在考虑了，奇怪的是比起在座的各位，我最不了解计算机，我甚至有点怕我的电脑。

哈佛公开课 - 计算机科学课程节选

It gives a sense of what this music is all--really all about and since, as we were saying, so much classical music doesn't have a text with it we've got to have some markers in there to know what the composer is trying to communicate to us.

让我们了解这段音乐想表达什么，就像我说的，大部分古典音乐并没有文字注解，而我们需要一些标记,来告诉我们作曲家想用这段音乐告诉我们什么。

耶鲁公开课 - 聆听音乐课程节选