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Photo taken on July 12, 2019 shows mountains in Qilian County of Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province. (Xinhua/Liu Jinhai)
Photo taken on July 12, 2019 shows mountains in Qilian County of Haibei Tibetan Autonomous Prefecture, northwest China's Qinghai Province. (Xinhua/Liu Jinhai)