roulette

n [U] gambling game in which a small ball falls at random into one of the numbered compartments on a revolving wheel 轮盘赌: play roulette 玩轮盘赌 * [attrib 作定语] a roulette wheel 轮盘赌具上的轮盘.

rotter, rotund, rotunda, rotundity, rotundly, rouble (also ruble), roue, rouge, rough, rough house, rough luck, rough-and-tumble, rough-hewn, roughage, roughcast, roughen, roughly, roughneck, roughness, roughshod, round, round and round, round brackets, round off, round robin, round trip, round up, round-eyed, round-shouldered, round-table, round-up, roundabout, rounded, roundel, rounders, Roundhead, roundish, roundly, roundness, roundsman,