相关单词近义词 underground 地下的, closet 壁橱, private 私人的, enigmatic 谜的, significant 重要的, secret 秘密, undercover 从事秘密工作的..., surreptitious 暗中进行的, covert 隐蔽的, concealed 隐藏的, stealthy 隐密的, furtive 偷偷的, illegal 非法的, cloak-and-dagger 有关阴谋或间谍的..., hush-hush 秘密的, hugger-mugger 秘密的, hole-and-corner 秘密的临近词clang, clan, clandestinely, clandestineness, clandestine sale, clandestine agent, clandestine trade, clandestine press, clandestine worker, clandestine adj., clandestine dealing, clandestine society 返回 clandestinity