Research on international carbon tax system: from the perspective of global environmental justice Research on international currency from the perspective of safe assets Research on international law from the perspective of national laws Research on ecological reform of tax system from the perspective of low-carbon economy Studies on the international customs law from the perspective of global governance 并列题名：Research on international currency from the perspective of safe assets 并列题名：Research on international law from the perspective of national laws research on western art from the perspective of subjective aesthetics 并列题名：Studies on the international customs law from the perspective of global governance Research on Chinese dream of national revitalization from the perspective of globalization