(Sound) On the program itself, Griffin was constantly challenged, as in this exchange, where he tries to explain his stance on immigration.

VOA: standard.2009.10.23

Me and my friend went to the same university and went to the same exchange program to Canada

我们上了同一所大学，也参加了同一个到加拿大的交流项目，

和朋友一起逛洛杉矶 - SpeakingMax英语口语达人

I studied there for 4 months as an exchange program

我在那里学习四个月，是一个交换项目，

我喜爱的城市 - SpeakingMax英语口语达人

The two became friends just after high school while on a student exchange program in Europe.

VOA: standard.2010.06.19

Senator Roland Burris also blasted the program, and the U.S.government's contract with Boeing for the work, during this exchange with Customs and Border Protection Agency commissioner Alan Bersin.

VOA: standard.2010.04.21

North Korea agreed in principle in 2005 to scrap its nuclear program, including a presumed arsenal of several nuclear weapons, in exchange for energy aid and diplomatic benefits.

VOA: standard.2009.04.14