Halform三卤甲烷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 bearing thickness轴瓦厚度Half- baked building烂尾楼half-round wood rasp半圆木锉half-nitrosofication半亚硝化half-finished washer半光制垫圈Half of four is two.四的一半是二。half-sib correlation半同胞相关half-thickness value半厚值half sovereignty state半主权国half as large again as比, 一倍半于