Nearly 5,000 farmers in Burkina Faso, Cameroon,Ghana,Senegal, and Sierra Leone are exporting organically-grown produce to Europe, after gaining organic and fair-trade certification with help from the U.N.Food and Agriculture Organization.

VOA: standard.2010.04.11

If you think about the modern food environment compared to the ancient one, so let's say somebody getting something at a fair compared to the old days.

如果将现在的饮食环境,与过去的相比,例如比较在现在和过去的人们,在集市上能买到哪些东西

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

This means that all the area surrounding that Fairview Gardens was mainly farmland back in the 1950s, all growing food, probably a fair amount of it being eaten locally by people.

美景花园的整个周边地区,在上世纪50年代基本上都是耕地,都长着农作物,其中很大一部分被当地人消费掉

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选