想象一下这样一个世界——不需要耕种或种植作物，同样的口味和结构可以用生的“食品墨水”打印出来。

Imagine a world where there was no need for farming or growing crops and the same tastes and structures could be printed from an uncooked "food ink".

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其他方法还包括在太空放置巨大的镜子或种植数以亿计的树木。

Others range from putting giant mirrors in space to planting billions of trees.

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由于无法购买或自己种植粮食，饥饿的人们走上街头乞讨。

Unable to buy grain or grow their own, hungry people take to the streets.

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Once it became true that people could raise food or gather food, or produce food for more than just themselves or their families, meant that people were free to do other things.

这些成为现实之后,人类不仅仅能为他们自己或家人,种植,收集或制造食物,也就是说人们可以有空来做别的事情

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Okay. Then you can look at how many things like cows are raised in the United States, and how many acres there are of carrots, or wheat, or corn, or whatever it is.

好了,然后就可以看看,比如,美国养了多少头牛,种植了多少英亩的胡萝卜,小麦,玉米,或其他东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选