卧底特工：指在暗中执行军事、情报或执法任务的特工，通常以卧底身份进行秘密行动。
(military) a secret agent hired by a state to obtain information about its enemies or by a business to obtain industrial secrets from competitors
同义词： spy
... espy (从远处等)突然看到... descry 远远看到 undercover agent 密探 ...
... undercover 秘密的 私下进行的 undercover agent 卧底 undercrowded 人手不足的人才过少的 ...
This report is from an undercover agent and it's authentic .
这是一个卧底特工的报告，很可靠。
Three years ago, a little painting caused big trouble for undercover agent Bob Wittman.
三年前，一幅小小画作给卧底特工鲍勃·惠特曼带来了大麻烦。
Orwell is, in a sense, an undercover agent, an anthropologist who has gone native to better observe his subjects in their natural habitat.
某种意义上，奥威尔是一个隐姓埋名的打探者，是一个融入当地环境并更好更自然地观察所研究对象行为的人类学家。
According to an affidavit, Walter Myers told the FBI undercover agent that he was recruited after visiting Cuban officials in Havana in 1978, and later began passing information to intelligence agents, often in person.
VOA : standard.2009.06.06
Much of the discovery in the case originated from recordings between Abassi and an undercover agent who spoke Arabic.
The smuggling operation was halted after Navy investigators planted an undercover agent.
An undercover agent had posed as an associate of the Pakistan contact and met Mr Mohamud to discuss the plan, the court papers said.