halfer单脚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 indexation半指数化half sib mating半同胞交配half glass door上半装配玻璃的门half wave layer半波层half edge graph半边图half subtractern.半减法器half wellington短统靴half-intervaln.半区间half leg circle摆越half-marathonn.半程马拉松