If you're writing a one line function, whose sole purpose in life is addition, and, clearly, this is about addition, well, then it's, in fact, A reasonable to use a shorter symbol like A, but I do have to specify it's type.

如果你在写一个一行的函数，它唯一的目的是,做加法，显然这是关于加法的，好的，实际上，用一个短的标识符是合理的，像，但是我必须指明它的类型。

哈佛公开课 - 计算机科学课程节选

But what's even worse is I'm going to get even less than the average amount of life.

但更糟糕的是,我活得比平均寿命还要短。

耶鲁公开课 - 死亡课程节选

So, let me just read you this poem, it is short, and it's a Brecht poem and it's called "A Worker Reads History." And then you can go home, or go shop, shop till you drop, whatever.

所以就让我给你们读一下这首诗,很短的,是一首布莱希特的诗,叫做,《工人读史》,然后你们就可以回家了,或者去购物,买到你拎不动,爱干啥干啥

耶鲁公开课 - 1871年后的法国课程节选