black ops

劍橋詞典

secret military activities , especially illegal ones , that are ordered by a government or organization but that they will not admit to having ordered
（由政府或機搆下令進行卻對外否認(rèn)的、尤指非法的）秘密軍事行動
a black ops agent /team 秘密行動特工/團隊 返回 black ops