4周搞定2000+托福核心词
undercover
常考释义
adj. 从事秘密工作的；秘密的
Undercover FBI agents
联邦调查局密探
They were undercover reporters.
他们是暗访的记者。
The woman turned out to be an undercover police officer.
这名女子原来是卧底警察。
adj. 暗中进行的；秘密的
It was an undercover operation designed to catch drug smugglers.
这是一次旨在抓捕毒品走私犯的秘密行动。
Eleven men were arrested following an undercover investigation.
在一项秘密调查之后，有11人被捕。
adv. 秘密地；暗中进行地
She was working undercover.
她曾是地下工作者。
Swanson persuaded Hubley to work undercover to capture the killer.
斯万森劝说赫布利做卧底以逮捕凶手。
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