As I'll explain later in class, in Florida there used to be many, many, many varieties of oranges and now there are about four and there are commercials reasons for this occurring.

稍后我会详细解释,在佛罗里达州曾经有很多种类的橙子,而现在那里大概仅剩四种,这一切的发生归咎于商业上的原因

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选