1,Sustainable development strategy
2,Rely on science and education to rejuvenate the nation
3,birth control
4,Economic development
5,Protect environment consciousness
6,Environment problem
7,Human being and the nature harmony coexists
8,Russian October Revolution
9,developed countries
10.developping counties
11.Communist Party of China
12.Qin Shihuang's
13.Yellow emperor
14.Yan emperor
15.The Great Cultural Revolution
16.Buckingham Palace
17.The Kremlin
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