Leftere莱夫特雷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 lateral bending左侧弯曲Left seminal vesicle左精囊Left visceral pleura左胸膜脏层left inverse element左逆元left-rightlongeron左右纵梁left less than right左小于右left scapuloanterior左肩前位left pulmonary veins左肺静脉Left atrial geometry左心房构型left border dullness左浊音缘, 浊音界左缘(心脏叩诊)