All right. So you can already begin to see a development in intellectual history that perhaps opens the way to a certain skepticism.

好，所以大家已经开始看到,人类思想史的一个发展,它很可能为某种怀疑主义开辟了道路。

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And then you feel like you can begin to open up because your friend has opened up.

看见朋友的坦诚，你觉得你也可以跟朋友敞开来聊了。

I used to 课堂 - SpeakingMax英语口语达人

It takes place in small rooms. If you begin to think about it, you can almost see the set changes: in the diner, on the train station. That's about the most open place, on the train platform. That's about the most open place we see.

在很小的空间里发生，如果你们开始思考它，你们几乎能看到场景的改变，晚饭，在火车站，那算是最室外了，在火车的月台上，那也算是最室外了。

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So the point of this is: once you get these kind of progressions locked in your ears, you go to a concert and you can begin to chart what the piece is doing in terms of its harmony.

这里的重点是，一旦你的耳朵牢牢记住了这些进程，你去听音乐会的时候就能开始分析一部作品的和声了。

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Those of you who have your ping-pong balls can now begin the experiment.

好，我们会到这边来把球给你们,已经拿到球的同学就可以开始试验了。

麻省理工公开课 - 化学原理课程节选