Children of a local kindergarten take part in a waste sorting game during an environmental awareness activity in Qingcaowu Village of Lijiaxiang Township in Changxing County, Huzhou, east China's Zhejiang Province, Dec. 12, 2018. (Xinhua/Xu Yu)

Children of a local kindergarten and their teacher promote waste sorting know-hows to a resident (1st L) during an environmental awareness activity in Qingcaowu Village of Lijiaxiang Township in Changxing County, Huzhou, east China's Zhejiang Province, Dec. 12, 2018. (Xinhua/Xu Yu)

Children of a local kindergarten take part in an eco fashion show during an environmental awareness activity in Qingcaowu Village of Lijiaxiang Township in Changxing County, Huzhou, east China's Zhejiang Province, Dec. 12, 2018. (Xinhua/Xu Yu)

Children of a local kindergarten take part in an eco fashion show during an environmental awareness activity in Qingcaowu Village of Lijiaxiang Township in Changxing County, Huzhou, east China's Zhejiang Province, Dec. 12, 2018. (Xinhua/Xu Yu)

Children of a local kindergarten take part in an eco fashion show during an environmental awareness activity in Qingcaowu Village of Lijiaxiang Township in Changxing County, Huzhou, east China's Zhejiang Province, Dec. 12, 2018. (Xinhua/Xu Yu)