cloak-and-dagger

adj [attrib 作定语] (of a story, film, etc) involving intrigue and espionage （指故事、 电影等）有阴谋和间谍活动内容的.

clinic, clinical, clinical thermometer, clink, clinker, clinker-built, Clinton, clip, clip-clop, clip-joint, clip-on, clipboard, clipper, clipping, clique, cliquy (also cliquey, cliquish), clitoral, clitoris, Cllr, cloak, cloakroom, clobber, cloche, clock, clock golf, clock tower, clock-face, clock-watcher, clock-watching, clockwise, clockwork, clod, clodhopper, clog, clog-dance, cloister, cloistered, clone, close, close about,