So, normally at this point, we do actually start class with a little bit of history from alchemy to modern chemistry, but I decided to skip that this year.

通常在这个时候,我们要从一些从炼金术,到现代化学的历史出发正式开始我们的课程。

麻省理工公开课 - 化学原理课程节选

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

What it was it began the first country to adopt the gold standard officially was the United Kingdom and that was in 1717.

它是什么---它开始于,第一个官方正式地采取金本位制度的国家,是英国，那时是1717年。

耶鲁公开课 - 金融市场课程节选

And unsurprisingly-- since I announced this was going to be the result before the class had barely gotten started-- I don't think any of these arguments work.

我在课程还没正式开始的时候,就已经说过了,我认为这些论证都站不住脚

耶鲁公开课 - 死亡课程节选

That will officially start this Friday.

这周五，我们会正式开始。

哈佛公开课 - 计算机科学课程节选

I'm going to start going into the physics proper.

现在我们开始正式走进物理世界

耶鲁公开课 - 基础物理课程节选

All right, so before I begin I just want to say I want to keep this pretty informal so feel free to jump in if you have comments, questions if you disagree with me.

在我开始之前,我想说,不需要那么正式,如果大家有什么见解或者问,如果大家有什么不同意见,希望大家有一些不同的见解。

麻省理工公开课 - 电影哲学课程节选

Now what I'd like to do is something that you'll probably cut out because of copyright issues but it's a kind of fun warm-up anyway, so we're going to go ahead and do this and then we'll actually start.

首先我想做个小游戏,不过这个片段可能由于版权问题而被切掉,但是这个热场游戏很有趣,那么,我们马上开始,游戏之后再正式上课

耶鲁公开课 - 聆听音乐课程节选

Let's start now.

咱们正式开始上课

耶鲁公开课 - 基础物理课程节选