lefthandadj.左手的(用左手的；靠左行驶)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-half side production[计] 左侧产生式left mediolateral episiotomy左中侧外阴切开术Left atrioventricular ostium左房室瓣口Left posterior tibial artery左胫后动脉Left lower parathyroid gland左下甲状旁腺left gastro-omental artery胃网膜左动脉Left ventrieular hypertrophy左心室肥厚left pulmonary aortic sulcus左肺主动脉沟Left ventricular remodelling左室重塑left superior lobar bronchus左肺上叶支气管