The Yanfang line, Beijing's first driverless subway line connecting the city's southwest suburbs to its central urban district started its first pilot run on Wednesday morning.

本周三早上，连接西南郊区和中心市区的燕房线——北京第一条无人驾驶地铁线路——开始第一次试运行。

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The paper analyses and study on one mode of the external transportation in the central urban district of Zhongshan City, i. e. road transportation. It also puts forward the measures for improvement.

本文对中山市中心城区对外交通的方式之一，即：道路交通进行分析研究，并提出改善措施。

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Central recreational district is an important part of urban functions.

中央游憩区是城市功能的重要组成部分。

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While you're never far from an urban vignette that contrasts with the central business district's gloss, it's best to plunge into another area of the city for more local color and flavor.

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"All over the country there are signs that say 'Central Business District, '" reported Alexander Garvin, an urban planner who is a former commissioner on the New York City Planning Commission.

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