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halfspan loading半节距装载half-open cube半开正方形half dead center半缺顶尖half-track car半履带式汽车half-stockings中统女袜half the size of尺寸为half-open tube一端开口的管half-cap crown露面冠,开面冠half hibernation半冬眠，假冬眠half-white oil半亮油