It is a political culture, Smith argues, in which violence has always played a central role.

VOA: standard.2010.03.18

It emerged from a unique history in which chance and accident often played a vital part.

它出现在这段独特的历史中,其中机遇和偶然性扮演了重要角色

耶鲁公开课 - 古希腊历史简介课程节选

The game I just put up, that's a trivial example, it didn't really matter which equilibrium we played here, we just wanted to play an equilibrium, is that right?

但是现在讨论的这个小案例呢,到底达成哪个均衡并不重要,重要的是我们要达成均衡,是这样吧

耶鲁公开课 - 博弈论课程节选

The Tea Party movement, which takes its name from a significant American Revolutionary War event, played a significant role in drumming up grassroots opposition to President Barack Obama's health care reform plan and in raising concerns about the country's growing budget deficit.

VOA: standard.2010.02.09