inside job
內部人員干的事情
口語·指由內部人實施的犯罪或事件
英文釋義
an act or crime committed by someone within an organization or group
例句
The robbery was an inside job—the security guard let them in.
典故來源
源自20世紀初犯罪報道,指由組織內部人員參與或策劃的犯罪行為,強調‘內部’的關鍵作用。