http://www.pons.de/produkte/3-12-517841-X/（牛津大学出版社授权产品）
英语
西班牙语
undercover [美 ˌəndərˈkəvər, 英 ʌndəˈkʌvə, ˈʌndəkʌvə] 形
undercover operation/agent/work:
- undercover
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在《PONS词典》中的词汇
II. undercover [ˌʌndəˈkʌvəʳ, 美 -dɚˈkʌvɚ] 副
- undercover
-
undercover 副
- undercover
-
在《PONS词典》中的词汇
单语范例（未经PONS编辑处理）
Numerous city, state and federal agencies trained with this unit to see it tactics and undercover roles the detective played in the street sales.
en.wikipedia.org Teams of uniformed and undercover police officers randomly conducted mini-sweeps, swarming and arresting groups of evaders.
en.wikipedia.org Joe turns out to be a law-enforcement undercover agent, working to bring down the drug ring.
en.wikipedia.org After several visits to the hospitals, undercover journalists were able to access and leaf through several patient files, despite the nearby presence of nurses.
jamaica-gleaner.com Later it was revealed that 25 undercover officers were deployed and were mixing with demonstrators.
en.wikipedia.org