现在你知道为什么我从不错过一节课了吧。

Now you know why I never miss a lecture.

youdao

现在你知道为什么我那么骄傲了。

Well, you can see why I'm proud.

youdao

现在你知道为什么要登梅峰了吧？

Now you understand why we climbed the peak?

youdao

If you don't know why you're about to eat cake like that you will soon, but you know this.

如果你现在还不知道为什么将要吃到那样的蛋糕,很快就会知道的，你清楚这一点。

哈佛公开课 - 计算机科学课程节选