He said, "I had a lot of trouble, I took it to department stores and I said, why don't you sell this?

他说，当时我遇到了很多麻烦，我把它拿到百货公司，我说，你们为何不销售这个呢？

耶鲁公开课 - 金融市场课程节选

so I figured why not just keep going with it?

所以我想为何不继续沿着这条路走下去呢？

为什么是会计学呢？ - SpeakingMax英语口语达人

Why should we weigh all preferences that people have without assessing whether they're good preferences or bad preferences?

为何该同等看待所有偏好,而不区分其好坏呢？

耶鲁公开课 - 公正课程节选

But why don't I apply this same logic?

但为何不使用相同的逻辑呢？

哈佛公开课 - 计算机科学课程节选

Anyway, I was reading--well, why didn't he think there was a bubble?

不管怎样,我看了那本书,那么,他为何认为不存在泡沫呢

耶鲁公开课 - 金融市场课程节选

t they do it?

他们为何不这样做呢，Why，don’

斯坦福公开课 - 经济学课程节选