These two systems which are shown in the core of this diagram really are responsible for regulating and exchanging information between the other organ systems.

在这张图的中心画的就是这两个系统,它们的功能是调节其他系统,并与之交换信息

耶鲁公开课 - 生物医学工程探索课程节选

The other threat is eonomic, and all the economic issues are tied in my judgement, to the same core problem which is the long-term fiscal challenge that this country faces.

另一个威胁是经济方面的，我认为所有的经济问题,都和一个核心的问题分不开,就是我们国家面临的,长期财政挑战。

普林斯顿公开课 - 国际座谈会课程节选