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Tourists walk on a glass-bottomed bridge at a scenic area of Nantong, east China's Jiangsu Province, June 8, 2019. (Xinhua/Xu Congjun)
Tourists walk on a glass-bottomed bridge at a scenic area of Nantong, east China's Jiangsu Province, June 8, 2019. (Xinhua/Xu Congjun)