A train passes through the countryside.

VOA: special.2010.06.13

You need to train a pig and you need to do so through operant conditioning.

你需要运用操作性条件作用来训练一头猪。

耶鲁公开课 - 心理学导论课程节选

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