Why? It's a good question, it's not something that economists seem to understand very well.

至于原因是什么，的确值得研究，即使是经济学家，也并不见得完全明白。

斯坦福公开课 - 经济学课程节选

He was dubbed the "miracle baby," for reasons that I will explain.

他被称为奇迹之子,至于原因我之后会解释

耶鲁公开课 - 1871年后的法国课程节选

They matter a lot for different reasons.

至于为什么重要，就有各种各样的原因。

耶鲁公开课 - 心理学导论课程节选

t do the right things in the first place.

至于原因我们刚才说过，那是因为在一开始我们就错了，We，said，we，didn’

普林斯顿公开课 - 国际座谈会课程节选