(211013) -- ZAOZHUANG, Oct. 13, 2021 (Xinhua) -- Volunteers perform the yangko dance for local seniors in Daguozhuang Village of Zaozhuang City, east China's Shandong Province, Oct. 12, 2021. The Double Ninth Festival or the Chongyang Festival is approaching. A series of celebration activities were held across the country. (Photo by Yang Qingzhou/Xinhua)
