Workers collect ice on Mudanjiang River in Mudanjiang, Northeast China's Heilongjiang province, Dec 8, 2013, a day after the "Daxue", the 21st of the 24 solar terms in Chinese lunar calendar. (Photo/Xinhua)
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Workers collect ice on Mudanjiang River in Mudanjiang, Northeast China's Heilongjiang province, Dec 8, 2013, a day after the "Daxue", the 21st of the 24 solar terms in Chinese lunar calendar. (Photo/Xinhua)