The extended-through-space train I pick out at the end of our walk is the same as the extended-through-space train that I picked out at the beginning of our walk.

走到末尾的时候,我谈到的贯穿空间的火车,和一开始我谈到的,是同一辆。

耶鲁公开课 - 死亡课程节选

And we're asking: Is that the very same space-time worm as the one we picked out previously or a different space-time worm ? than the one we picked out previously?

然后我们问：,这条时空虫,跟我们之前指的一样吗,还是和我们之前指的,不是同一条时空虫？

耶鲁公开课 - 死亡课程节选

The extended-through-space train that I'm picking out when I pointed the locomotive turns out to be a different train from the extended-through-space train I picked out when I pointed to the caboose.

当我指着火车头,所提到的贯穿空间的火车,和我指着火车尾,所提到的贯穿空间的火车,不是同一辆。

耶鲁公开课 - 死亡课程节选