VOA慢速英语:一个成功的故事：从清洁工到领导者

custodian – n. a person who cleans and takes care of a building

superintendent – n. a person who directs or manages a place, department, organization, etc.

doctorate – n. the highest degree that is given by a university

potential – adj. capable of becoming real

counselor – n. a person who provides advice as a job : a person who counsels people

advocacy – n. the act or process of supporting a cause or proposal : the act or process of advocating something

translator – n. a person who changes words written in one language into a different language

ghost – n. the soul of a dead person thought of as living in an unseen world or as appearing to living people