People enter the Henan Sports Center metro station in Zhengzhou, capital of central China's Henan Province, Dec. 26, 2020. The first-stage of Metro line three and Metro line four in Zhengzhou started operation on Saturday. (Xinhua/Xu Yanan)
First-stage of Metro line three, Metro line four in Zhengzhou starts operation
Source: Xinhua| 2020-12-26 21:29:40|Editor: huaxia
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