基本解释[机械工程]平均住户人数[土木建筑工程]平均家庭人数英汉例句权威例句And mean household size varies considerably across Europe.FORBES: Seriously, Cyprus Is Not Richer Than Germanymean household size更多例句专业释义机械工程平均住户人数土木建筑工程平均家庭人数