I am going to talk about this topic for three reasons.

原因有三。

哈佛公开课 - 幸福课课程节选

There are three reasons for that.

原因有三。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

And I mentioned three reasons, Why we need it as an independent field as opposed to just being " "well,let's do some studies on happiness,on relationships" ? as it is always being done?

我提到了三个原因，为何我们把它作为独立的研究，而不简单地,“研究一下幸福和爱情“,不像一贯人们所做的那样？

哈佛公开课 - 幸福课课程节选

Can you give me, say, three or four reasons why what we're about to hear differs from what we just heard?

你能告诉我三四个原因吗,为什么我们马上要听到的音乐与刚听过的不同

耶鲁公开课 - 聆听音乐课程节选

I've got three main reasons, they're: adverse selection, moral hazard, and liquidity.

我总结出三个主要原因,分别是,逆向选择,道德风险,及流动性

耶鲁公开课 - 金融市场课程节选

So I said there are three reasons.

我说过有三个原因。

哈佛公开课 - 幸福课课程节选

I think that's the three most important reasons for what happened in the Internet space in China.

以上这些就是主要的三个原因,来解释中国互联网市场的现状。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选