cluck

v 1 [I] make a cluck 发出咯咯声. 2 [I, Tn] (of people) express (disapproval, etc) by making a similar noise （指人）发出表示不同意等的声音.

cloudy, clout, clove, clove hitch, cloven, clover, clover-leaf, clown, clownish, cloy, cloying, cloze test, club, club car, club sandwich, club-foot, club-footed, club-root, clubbable, clubhouse, clue, clueless, clump, clumsily, clumsiness, clumsy, clung, clunk, cluster, clutch, clutter, cm, Cmdr, Cmdre, CND, CO, co-, co-op, co op, co-operate, co-operate, cooperate,