sleeper agent

常见例句

He was sure the agent was a sleeper, probably for sabotage in the event of an international crisis .
他肯定这名特务是一个长期潜伏者，可能是为了在一旦发生国际危机时进行破坏活动的。
translation-dictionary.net
US federal judge sentenced a convicted al-Qaida sleeper agent who admitted having contact with the alleged mastermind behind the September 11 terrorist attacks to more than 8 years in prison.
美国一家联邦法院日前判处一名在押基地组织潜伏特工8年以上徒刑。
blog.sina.com.cn
Sleeper move: Hard to pick just one between the free-agent signings of former Toronto teammates Anthony Parker and Jamario Moon.
助推器：很难在最近签的猛龙队安东尼帕克和月亮先生之间选择。

Poland has also caught and deported two Russian spies this year and put a Russian sleeper agent on trial.
ECONOMIST: Polish foreign policy
Ali Saleh al-Marri, an al-Qaida operative from Qatar, was arrested while attending an American university and accused of being a sleeper agent.
FORBES: Commentary