And though you see there's something, you know-- I've been making the case that a polis is a different thing from any other city state.

尽管你了解了一些,你知道,我一直在说,城邦和其他城市国家是不同的

耶鲁公开课 - 古希腊历史简介课程节选

and there's a lot of similarities in culture and certain parts of the city.

这两个城市在文化等一些方面有些相似。

旧金山的天气 - SpeakingMax英语口语达人

In Italy, some of these cities were able to gain control of the surrounding country and to become city states, resembling those of the ancient Greeks.

在意大利,一些城市还潜移默化地,影响了周边的区域,形成了城邦,这与古希腊的城市情况非常相似

耶鲁公开课 - 古希腊历史简介课程节选

So the problem here, roughly, is given, a number of cities, and say the cost of traveling from city to city by airplane, what's the least cost round trip that you can find?

基本上就是一个这样的问题,你被告知了一些城市,以及在城市之间坐飞机旅行的花费,那一条是你们能找到最短往返路径？

麻省理工公开课 - 计算机科学及编程导论课程节选