I was half Belgian, I grew up going back and forth between Europe and the United States.
我一半是比利时人,从小到大,我往返于,欧洲和美国之间。
Yeah, I think if you live outside of London and you need to commute, you got to get the train.
如果你住在伦敦市区外面,你需要坐火车上下班往返。
We can go back and forth between these two equilibrium states They're connected.
我们可以,在这两个平衡态间往返,它们是相互联系的。
But,the turbo-prof will be somebody who is assigned to Reims, and who takes the train there every day, or to Tours; but to Lyon also since this is only two hours, this is four-hundred kilometers.
不过涡轮教授被派到兰斯教书,他每天都要坐火车往返,抑或是去图尔斯,从这里去里昂要用两小时,这有四百公里
But yeah, commuting in from outside London is a pretty expensive business.
但是,确实,从伦敦市区外面上下班往返相当贵。
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?
how can we move between different parts of the city?
我们还能怎样往返于旧金山不同的地方呢?
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