"I usually get together with a daughter and a granddaughter and we go out to dinner and exchange gifts.

VOA: special.2010.02.08

and I think that's something they can experience when they go on exchange to another university.

我觉得这是交换到别的大学的学生可以体验到的。

做交换生来到这里 - SpeakingMax英语口语达人

and talking to other people ,I thought that is a very healthy thing to do and as Zvi happened to live in my dorm and I thought it would be a great opportunity to exchange ideas, and to get to discover more.

和其他人聊天，我觉得这是,非常健康的事情,正好Zvi和我一个寝室,我觉得,我们有机会交换想法，了解更多。

普林斯顿公开课 - 人性课程节选