operative

operative

名词 operative:

a person secretly employed in espionage for a government

同义词：secret agent, intelligence officer, intelligence agent

someone who can be employed as a detective to collect information

同义词：private detective, PI, private eye, private investigator, shamus, sherlock

形容词 operative:

being in force or having or exerting force

of or relating to a surgical operation

relating to or requiring or amenable to treatment by surgery especially as opposed to medicine

同义词：surgical

effective; producing a desired effect

同义词：key

(of e.g. a machine) performing or capable of performing

同义词：running, functional, working