All right. So before we start in with today's notes, I do want to mention that this morning the Nobel Prize in chemistry was announced.

好的，在开始今天的课之前，我要说一下今天早上,公布了诺贝尔化学奖。

麻省理工公开课 - 化学原理课程节选

We're actually going to do one more clicker question to get started with today, and as we do, I'll explain something we're going to be trying today, which is a little bit of a friendly competition in terms of answering the clicker questions correctly.

我们将在开始讲授今天的课程之前,再多做一个选择题，我先来说明一下做这件事的原因，这实际上是一个,回答选择题的小比赛。

麻省理工公开课 - 化学原理课程节选

But as you know already, from what you've read, this has come into great dispute in recent years and I'll just say a little bit about the dispute before we get through today.

不过就像你们在课后阅读中读到的那样,他的说法近年来遭到了越来越多的质疑,我们在继续今天的讲解之前,我会先讲讲人们对于他理论的质疑

耶鲁公开课 - 古希腊历史简介课程节选