
Students participate in a rubbish classifying game at the first lesson of the new term at Qunying primary school in Mashan Town of Shaoxing City, east China's Zhejiang Province, Sept. 1, 2017. (Xinhua/Zhang Cheng)

Students participate in a rubbish classifying game at the first lesson of the new term at Qunying primary school in Mashan Town of Shaoxing City, east China's Zhejiang Province, Sept. 1, 2017. (Xinhua/Zhang Cheng)