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 cat半履带式机车halfmoonn.半月形half log对开木,对开圆木halfpace半层休息板,中间平台half die半模half GPS半GPS定位half off打五折halflinen.半直线halfnote二分音符Halfmann哈尔夫曼