"A sense that a step is made to release prisoners, and the government is trying to build some bridges in certain areas, but at the same time, the revolutionary side is given its moment in which Fidel Castro is able to excoriate the United States and to continue to lay out the revolutionary credentials, or Cuba's role as a leader of the Third World."

VOA: standard.2010.07.13

I'm still trying to work out a role for you so hang on for one sec.

我还在想给你配个什么角色,先等一会儿吧。

哈佛公开课 - 计算机科学课程节选

I took my role to sniff that out, and to make sure the president heard 2 and 4 on an important issue, and was able to make the decision himself.

我的作用就是发现这些，保证总统可以听到2和4这两个观点4,在一些重要问题上，然后他能自己做决定。

普林斯顿公开课 - 国际座谈会课程节选