File photo taken on Nov. 7, 2015 shows girls of Miao ethnic group dancing during a festival in Rongshui Miao Autonomous Prefecture, south China's Guangxi Zhuang Autonomous Region. As a country with 56 ethnic groups, China unfolds its charm of diversification during the Spring Festival. Spring Festival, or better known as Chinese Lunar New Year, is the most important festival for all Chinese, which has a history of more than 4,000 years. It is an occasion for home returning, New Year goods preparing, celebrating, and foremost, family reunion. (Xinhua/Long Tao)