translation.en: But in fact, if you reversed the figure ground -- in other words, the dark areas here -- I forgot to ask for a pointer -- but if you reverse it, you'll see a whole series of little dolphins. By the way, if you're also a student at CalTech -- they also tend to just see the dolphins. It's based on experience.
translation.zh: 但实际上，如果你对调一下图画的底色 换句话说，黑色的部分--我忘记要一只激光笔了- 如果你对调一下 你将会看到一组小海豚 同时，如果你也是一名加州理工的学生 --他们也可能只能看到海豚 这是基于经验的