President John Kennedy's daughter Caroline had a pony named Macaroni.

VOA: special.2009.02.23

How do we take a complex program, again, divide and conquer, I feel like a 1-trick pony, I keep repeating the same thing over and over again.

同样的先分解再逐个击破，我就像只会一个把戏的小马，我不断重复相同的事情。

麻省理工公开课 - 计算机科学及编程导论课程节选

It began a speedy mail service called the Pony Express.

VOA: special.2009.05.28