All right. So let me start again by reminding you what it is that was done last time.

好的,我们开始上课,先回顾下上节课的内容

耶鲁公开课 - 基础物理课程节选

Now, there are a couple of ways that can go; one that was certainly important and again it's for something that Hanson emphasizes, is what he calls internal colonization.

对此有几种解决方式,有一种很重要的,被汉森一再强调为,内部殖民的方式

耶鲁公开课 - 古希腊历史简介课程节选