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A maintenance worker inspects the bottom of a subway train carriage to prepare it for operation in Nanning, capital of south China's Guangxi Zhuang Autonomous Region, on the early hours of Jan. 1, 2020. (Xinhua/Cao Yiming)
Maintenance workers, subway train drivers stick to posts in Nanning, S China
Source: Xinhua| 2020-01-01 20:22:30|Editor: ZX
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