If an American, because his skin is dark, cannot eat lunch in a restaurant open to the public-- , then who among us would be content to have the color of his skin changed and stand in his place?

如果一个美国人，因为他的皮肤是黑色，而不能在一家对公众开放的餐馆吃午餐…,诸如此类的话，那么我们当中有谁会愿意,换上他的肤色，接受他受到的待遇？

耶鲁公开课 - 心理学导论课程节选

always to use a black cab driver because we know where we are going,

一定要乘坐黑色出租车司机的车，因为我们知道我们要去哪儿，

小心微型出租车 - SpeakingMax英语口语达人