Then they'll give them two other cities that they've never heard of and ask them how far apart they think they are.

然后测试者会给被测试者另外两个城市,他们同样没有听说过,然后问被测试者两座城市之间的距离。

耶鲁公开课 - 金融市场课程节选

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

Just as we cannot be friends with all persons, so the city cannot be friends with all other cities or the state with all other states.

就像我们不能与所有的人做朋友，城市间也不行,国与国之间更不用说。

耶鲁公开课 - 政治哲学导论课程节选