:.Perfecting Class System and Improving Class Management Level什么意思翻译下

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:.PerfectingClassSystemandImprovingClassManagementLevel什么意思翻译下:.PerfectingClassSystemandImprovingCla

:.Perfecting Class System and Improving Class Management Level什么意思翻译下
:.Perfecting Class System and Improving Class Management Level
什么意思翻译下

:.Perfecting Class System and Improving Class Management Level什么意思翻译下
完善分类制度和加强班级管理水平

:.Perfecting Class System and Improving Class Management Level什么 意思 翻译下