People of Miao ethnic group in traditional costumes participate in an activity called "Tiaoyue" or "dance under moonlight" in Shuitai Village of Longli County in Bouyei-Miao Autonomous Prefecture of Qiannan, southwest China's Guizhou Province, Feb. 22, 2018. "Tiaoyue" is a custom traditionally practiced by Miao youth to express love and find prospective mate. (Xinhua/Zhang Hui)