Some energy experts and environmentalists have expressed skepticism about the benefits of biofuels, especially ethanol produced from corn.

VOA: standard.2009.09.02

As we'll talk about later in the class, the biodiversity has shrunk so what used to be hundreds of varieties of corn is now just a few.

像我们后面所要提到的,玉米种群的生物多样性已经从曾经的,几百种减少到了现在的几种

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Our hypothesis is that in the United States it's less expensive to sweeten things than it is elsewhere in the world, and part of that is because of high fructose corn syrup that we'll talk about later in the class.

我们假设,在美国,让食物变甜的成本比在其他国家要低,其中一部分是因为高果糖玉米糖浆,稍后我们会讲一下这个糖浆问题

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 we'll--later in the course we'll talk about how much of your body has been influenced by corn; how much of your diet is influenced by corn; how many products you touch in a given day have been derived in some way from corn.

我们会在以后的课堂上讲到,玉米对你身体有多少影响,玉米对你的日常饮食又有多少影响,一天之内你接触到的产品,有多少是由玉米加工而来的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选