Michael Phelps, now that he's won all those gold medals, I hear is on Wheaties and somebo dy said Frosted Flakes, but I don't know if that's true.

迈克尔·菲尔普斯,他包揽了游泳项目所有奥运金牌,给惠特斯代言,但菲斯克多麦片的人说,不知道这是不是真的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

You all know that when you do dy/dx, you're not supposed to cancel that d.

你们都知道 当你算dy/dx时,你不能把d约掉

耶鲁公开课 - 基础物理课程节选