So I mean, I know one major advantage that Cal Tech students has

我想说，我知道加州理工学生享受的一个主要优势是，

做交换生来到这里 - SpeakingMax英语口语达人

Okay, so in oil we all know that in the late 60s, early 70s, OPEC was formed precisely to restrict quantity among the major oil producing countries, and very quickly we see companies take other countries take advantage of this to start producing oil profitably.

众所周知在上世纪六七十年代,为了限制石油的产量,主要产油国成立了OPEC组织,但是很快就有一些国家,利用这点来产油获利

耶鲁公开课 - 博弈论课程节选