And they are free. "Introduction to Trigonometry is where I teach people about the trig functions."

VOA: standard.2010.03.26

A little bit about the outline of the story, and then we're going to finally have an introduction between God and Moses, Which will I think bring us back to some of the conversations we had at the beginning of the course.

这就是故事的梗概，接着呢,我们最后介绍上帝和摩西之间的契约，我想我们又要回到原来的讨论,在我们课程刚开始进行过的。

耶鲁公开课 - 旧约导论课程节选

We're going to begin the class proper, Introduction to Psychology, with a discussion about the brain.

今天我们开始正式上课,心理学导论,我们首先要来探讨的是大脑

耶鲁公开课 - 心理学导论课程节选

I think it's worth saying a word or two about the word "introduction" as well.

关于介绍这个词，我也想简单说几句。

耶鲁公开课 - 文学理论导论课程节选

cause we only have couple of minutes, Ok, it's alright So, for next time, you are going to read about Death in Venice...the introduction that's the movie we're going to watch next week ? But, what do you read for next time?

因为我们只剩几分钟了，可以，没问题,那么，下一次,你们要读《魂断威尼斯》，的介绍,这是我们下周要看的电影,那你们下一次上课之前读什么呢？

麻省理工公开课 - 电影哲学课程节选

I've given you the periods at the top of the chart: early Bronze Age; middle Bronze Age from about 2100 to 1550; we date the late Bronze age from about 1550 until 1200--the introduction of iron and the beginning of the Iron Age in 1200. Prior to that, the Bronze Age, which is divided into these three periods.

我在这个表格的顶端给你们列了一些时期：,早期青铜时代；中期青铜时代，从约公元前2100年到前1550年；,晚期青铜时代，从公元前1550年到前1200年，即铁器时代前页；,然后公元前1200年开始了铁器时代，在那以前，青铜时代分为那样三个时期。

耶鲁公开课 - 旧约导论课程节选

I will also look over my notes and see what I might say further about these troublesome terms and their relation to Derrida's understanding of language so that Tuesday our introduction will still have to do with Derrida and then we'll move into thinking about de Man.

我同时会看一下我的教案,来看看我怎样进一步介绍这些麻烦的术语,以及它们同德里达的语言的理解的关系,所以我们周二会继续讲德里达,这之后我们介绍会一下德曼。

耶鲁公开课 - 文学理论导论课程节选