Tra từ rat somebody out - Từ điển Oxford Advanced Learner 8th

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Từ điển Oxford Advanced Learner 8th

rat somebody out to somebody rat sbout (to sb) derived (especially NAmE, informal, disapproving) = ↑rat on somebody •Someone ratted us out to the police. •The college was ratting out students for music piracy. Main entry: ↑rat_derived