a complex red organic pigment containing iron and other atoms to which oxygen binds
例句
用作名词 (n.)
A conjugated protein composed of heme and globin that gives red blood cells their characteristic color,function primarily to transport oxygen from the lungs to the body tissues. 一种含亚铁血红素和珠蛋白的复合蛋白质，给血细胞其特有的红色，主要功能是将氧从肺传送到各种身体组织。
美
[hiːm]
