The concept which originated in Europe was adopted by American city planners in the late 1950s.

这个起源于欧洲的概念，在20世纪50年代末被美国城市规划者采用。

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What kind of concept of life and practice can make city better?

什么样的生活观念和实践让城市更美好？

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Though the city was built long before the concept of urban heat islands came into being, I can't help but wonder if the white paint has helped generations of Colombians to beat the tropical heat.

尽管波帕扬在“城市热岛”的概念出现以前，就早已建成，但我还是迫不及待地想要知道，这座白色之城，是否真的能够帮助哥伦比亚的代代子民，对抗当地酷热的气候。

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I took that concept and eventually in 2000 realized that I had this beautiful picture of the city but it was all verticals.

我接受了这个概念,最终在2000年我意识到,我虽然勾画出了这个城市的美丽图景,但它都是垂直的线。

斯坦福公开课 - Twitter之父Jack.Dorsey演讲：好奇和灵感的力量课程节选

Another difficulty was building the infrastructure and getting people to accept the concept of a city within a city.

NPR: Atlanta Development Aims to Revitalize Downtown

Officials are planning to include the Dog City concept in two buildings under development in Chicago, and in their next Midtown property.

WSJ: Where Dogs Rule the Roost

However, the concept of a city within a city, one that appears disconnected from its surrounding environment, rests uneasily with some, who see it as the stuff of dystopic science fiction.

CNN: Beijing embraces Brave New World of buildings