roster

n. 值勤表，花名册

rope ladder, rope-ladder, ropiness, ropy (also ropey), Roquefort, roro, rosary, rose, rose-bud, rose-hip, rose-water, rose-window, roseate, rosebay, rosebush, rosemary, rosette, rosewood, rosin, rosiness, rostrum, rosy, rot, rot-gut, rota, rotary, rotate, rotation, rotational, rotatory, rote, rote learning, rotisserie, rotor, rotten, rottenly, rottenness, rotter, rotund, rotunda,