What worries you about America today, terrorism, wars in Iraq, Afghanistan, economy, the deficit, medicare, social security or America's place in the world, which many say sliping or begining to slip?

今天的美国哪些地方让你担心呢，恐怖主义，对伊拉克和阿富汗战争，经济，赤字，医疗保险，社会保障,还是美国的国际地位，有人称美国的地位正在或开始下滑？

普林斯顿公开课 - 国际座谈会课程节选

and it's all about the security situation in the world right now between states,

它是一门关于当下各国之间安全局势的课程。

想进布朗的话 - SpeakingMax英语口语达人