halfbatn.半砖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-time break中场休息halfround sleeper半圆枕木half-turn stair两次直角转弯楼梯half-long vowel半长元音half inch margins半英寸边距half-pennyworthadj.只值半便士的half of deflexion半偏half-split flow半截流,半削裂流half-anatropous半倒生的half-tone image半色调图, 浓淡点图