Okay, but it may be-- how many national anthems around the world do we have in minor keys?

好了,但是也许,世界上有多少个国家的国歌,采用的是小调呢

耶鲁公开课 - 聆听音乐课程节选

Everybody in this room has some understanding of how the world works, how physical things behave.

大家对于这个世界是如何运作的,身体是如何运作的,多少都有一些了解

耶鲁公开课 - 心理学导论课程节选

How many of you would guess that Unilever is the world's largest food company?

有多少人认为,联合利华是世界上最大的食品公司

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选