sleeper cell
短语[网络] 危机四伏
词形变化
sleeper cells
复数
sleeper cells
释义与例句
n.
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1.
A group of people (sleepers) who inconspicuously remain dormant in a community until activated, by a prearranged signal, in order to perform acts of espionage, sabotage, or terrorism.
潜伏小组