A building worker takes photos of fog scenery in Rizhao, a coastal city in east China's Shandong Province, Oct. 18, 2015. (Photo: Xinhua/Liu Mingzhao)
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A building worker takes photos of fog scenery in Rizhao, a coastal city in east China's Shandong Province, Oct. 18, 2015. (Photo: Xinhua/Liu Mingzhao)
