There may be a little uncertainty about whether the pizza place is still going to be open late at night when you get hungry.

就是当你饿的时候,不能确定批萨店是否还营业

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 used to be a large french fry at McDonald's is now the small French fries and so a lot of people will order something, like they'll go to a restaurant and they'll say, well would you like small, medium or large?

现在小包的麦当劳薯条,过去曾是被叫做大包,所以当人们走进饭店,点餐的时候营业员问,你想要小包中包还是大包的薯条

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选