Recently we told you about a study of genetically engineered crops and how they have affected farming in the United States.

VOA: special.2010.05.18

People even get coached on how to do it, so when drive-in windows were introduced recently in Malaysia, these little graphics went out to show people how you actually used a drive-in window.

人们甚至接受培训,学习如何做这些,当免下车餐厅最近在马来西亚出现时,这些图片表明了,人们是怎样使用免下车餐厅的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选