halfyn.<俚>没腿的残疾人； 无腿乞丐halfn.一半；下半场；半学年adj.一半的；不完全的adv.一半地；不完全地half inning半局half-ball半侧击球Half effect霍尔效应half gainern.花样跳水姿势half dollar美元的半元银币Halfwordson哈尔沃德松half-step半音half length一半长half-acre半英亩half ripsaw细齿木锯