Yanfang, have you ever been to Datong?

艳芳，你去过大同没有？

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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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