n.监护人,管理人,保管人,看门人
a self-appointed custodian of public morals
自封的公共道德的卫道士
He served as an elementary-school custodian for 20 years.
他当小学管理员20年了。
Augustine Hancock served as an elementary-school custodian for 20 years.
奥古斯丁·汉考克当小学看管人20年了。