undercover work 卧底工作 ; 秘密工作
Swanson persuaded Hubley to work undercover to capture the killer.
斯旺森说服了赫布利秘密工作以捕获凶手。
IN "UNDERCOVER BOSS", a British television programme, company chiefs disguise themselves and work on the shop floor of their own companies.
英国有一档电视节目叫“卧底老板”，公司老板乔装打扮后，下到自己公司一线与员工一起工作。
Undercover agents are police who work undercover to investigate crime and are totally different from little security informants.
警察从事秘密的调查活动才叫卧底，完全不同于治安小信息员。
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