How many lines--first of all, where has the melody gone--the theme?

有多少条旋律线,首先,这段旋律去了哪里

耶鲁公开课 - 聆听音乐课程节选

The first one is, I might say, a long-term risk theme.

我要说的第一个是，长期风险。

耶鲁公开课 - 金融市场课程节选

And you'll have fun, you'll learn a lot about France, I'll tell you that. Okay, one theme I'm interested in is-- well let me tell you about lectures, first of all.

过程会很有趣,你会学到很多关于法国的事,我会告诉你的,有一个我感兴趣的主题是,我先给你讲讲上课的事

耶鲁公开课 - 1871年后的法国课程节选

In the first lecture, I talked about a lot of things, but one theme that comes to my mind is the theme of the moral purpose and mission of the finance community.

第一课里，我讲了很多东西，但中心主旨,就是金融界的道德目标和使命。

耶鲁公开课 - 金融市场课程节选