| 单词 | undercover operation |
| 释义 | undercover operation (once / 120606 pages) n WORD FAMILY undercover operation: undercover operations USAGE EXAMPLES"I was not aware of the undercover operation," Cook said. Los Angeles Times(Nov 23, 2016) The two-month undercover operation led to the arrests of 27 men. Washington Times(Oct 11, 2016) So when Adam Devine needed a crime-fighting partner for an undercover operation at a college party, he knew just who to call. Time(Oct 04, 2016) n an operation involving secret work within a community or institution Hypo|Hyper buy-and-bust operation an undercover operation by narcotics detectives to catch unsuspecting drug dealers operation a planned activity involving many people performing various actions |
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