Left ear左耳leftadj.左边的adv.向左n.左边；左派分子；【体】左手拳动词leave的过去式和过去分词形式.left ventricular systolic output左心室收缩期排出量left ventricular volume overload左心室容量过度负荷left ventricular-stroke volume左心室搏出量Left ventricular heart-failure[医] 左心室衰竭left ventricular global function左心室整体功能left ventricular internal volume左心室腔容积left exact contravariant functor左正合反变函子Left ventricular filling pattern左室舒张充盈类型left leg augmented unipolar lead单极加压左腿导联Left ventricle systolic function左室收缩功能