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Performers of Dong ethnic group sing Ka Lau chorus, the big song of their distinguished folk vocal art, at a contest in Rongjiang county, southwest China's Guizhou province, Dec 18, 2015. Ka Lau, the big song of the Dong ethnic group, has been inscribed in the UNESCO's intangible cultural heritage list since 2009. (Xinhua/Chen Peiliang) |
