A worker fills water into a train in Shanghai south railway station in Shanghai, east China, July 12, 2017. A heat wave expanded in many parts of China on Wednesday. (Xinhua/Du Xiaoyi)
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A worker fills water into a train in Shanghai south railway station in Shanghai, east China, July 12, 2017. A heat wave expanded in many parts of China on Wednesday. (Xinhua/Du Xiaoyi)
