It is perpetually caught up in its own systematic nature so that it's a center.

它永远陷于自己本身系统性的本质中,因此它自己是个中心。

耶鲁公开课 - 文学理论导论课程节选

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