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 occipitoanterior左枕前位(胎位)left G-morphic ring左G-morphic环left-handed turning左旋left-luggage office行李暂存处left-wing newspaper左翼报纸left projective space左射影空间left branch condition左分枝条件left anterior oblique左前斜位left-shift register左移位寄存器left atrial potential左房电势