demonstrationsn.课堂演示；示范名词demonstration的复数形式.demonstrationn.示范；表达；实证；示威游行demonstration of water resources水资源论证Demonstration of standardization标准示范demonstration and discuss method演示与讨论方法demonstration ability of singing范唱能力demonstration center construction示范中心建设demonstration district programming示范园区规划demonstration center establishment示范中心建设demonstration common middle school示范性普通高中demonstration on financial affairs财务论证demonstration and education system示教系统