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Tower crane operator Cen Guanshu climbs up towards the crane cabin at a construction site in Nanning, south China's Guangxi Zhuang Autonomous Region, July 30, 2019. (Xinhua/Lu Boan)
Tower crane operator Cen Guanshu climbs up towards the crane cabin at a construction site in Nanning, south China's Guangxi Zhuang Autonomous Region, July 30, 2019. (Xinhua/Lu Boan)