Now in music as you probably know-- we've already talked a little bit about this-- we have the importance of the beat.

你们也许知道在音乐中节拍很重要,我们已经讨论过一些,节拍的问题

耶鲁公开课 - 聆听音乐课程节选

In segement one you talked about how the house was built up now how it collapsed.

第一章中,您提到了繁荣,现在让我们看看它怎样衰败的。

斯坦福公开课 - 经济学课程节选