And what does that mean? It means I am trained in geology, but with interests in the other planets and Mars in particular."

VOA: special.2010.07.28

What does that mean? Well, it means that, you know, there's maybe, let's say, that in the next 24 hours it will break down.

这意味着什么 好的,这意味着,就是说,有可能,这个原子会在未来的二十四小时内分裂

耶鲁公开课 - 死亡课程节选