rat out片語動詞KK [ræt aʊt] /ɹæt aʊt/發音片語動詞1告密、出賣、打小報告口語,可拆開He ratted out his coworkers to avoid getting fired himself.他為了不被開除,出賣了自己的同事。2舉報、檢舉口語Someone ratted him out to the police for stealing the car.有人向警方舉報他偷了那輛車。