So, there is that kind of a boundary as well, and that is a place where trouble is likely to emerge.

因此,也有那种边界,而边境线上恰恰是最容易发生争端的地方

耶鲁公开课 - 古希腊历史简介课程节选

There were always battles and wars going on, on the boundaries, the frontiers of the Roman Empire, but within the center of the empire there was an amazing period of peace.

战争永远都在进行，在边界，罗马帝国边境，但在帝国中心却是一派和平盛世。

耶鲁公开课 - 新约课程节选