The corn to ethanol conversion in the United States, and other things like that has really changed the world landscape in a lot of interesting ways.

在美国,很多类似于玉米制乙醇的技术,正以有趣的方式,改变着我们的世界

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选