So each of these complex, multi-layered sources in each one of them you can find different layers each one possesses its own emphases, its own agenda, its own perspectives. Sometimes they complement one another.

因此每一个复杂多层次的来源,你可以在每一个中找到不同层面,每一个都有它要强调的东西，它自己的安排，及它自己的视角，有时候它们相互补充。

耶鲁公开课 - 旧约导论课程节选

The personal aid isn't a National Security offical but a person always knows what the president's schedule is, has his briefing book, his speech, his man, whatever the president needs to just keep functioning.

私人助理不是国家安全部官员,但是他必须知道,总统的行程如何，拿着他的简报，他的发言，他的人手安排，一切总统维持正常工作,所需要的东西。

普林斯顿公开课 - 国际座谈会课程节选