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A worker does routine check-up on a railway bridge across the Yangtze River in Zhicheng, central China's Hubei Province, Jan. 25, 2019. (Xinhua/Peng Qi)

A worker does routine check-up on a railway bridge across the Yangtze River in Zhicheng, central China's Hubei Province, Jan. 25, 2019. (Xinhua/Peng Qi)