One that I found most instructive is called The Cambridge World History of Food, which is this very--two very large volumes.

我觉得最具指导性的是,《剑桥世界饮食史》,它有两大卷

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

What I'm going to do is I want to draw the two functions we just found and see what they look like.

下面我们绘制两个函数图像,看看图像是什么样的

耶鲁公开课 - 博弈论课程节选