halfarcn.半弧光灯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 webbed foot半蹼足(动)half-cardigans半开衫half period zone半周期带half-nut lever对开螺母手柄half up the poleadj.微醉的；半醉半醒的half-span roof单坡屋顶half-turn jump转体半周跳half-done work半成品half clock cycle半时钟周期half rate speech半速率