And most people are heterosexual There's a considerable amount that varies cross-culturally of people who are bisexual But the real puzzle is exclusive homosexuality ? So, why?

多数人都是异性恋的,而且不同文化背景下…,还有很多双性恋者,但真正的难题在于绝对同性恋,为什么呢？

耶鲁公开课 - 心理学导论课程节选

It's a little exclusive just because you have to interview to get in.

有一点点专属，因为要加入还要通过面试。

认识更多人 - SpeakingMax英语口语达人