posterior toadj.晚于posterioradj.(在时间；次序上)较后的n.臀部posterior lateral margin后侧缘posterior urethral valve后尿道瓣膜posterior condylar angle后髁角posterior mediastinotomy[医] 后纵隔切开术Posterior surface of arm臂后面posterior mitral leaflet二尖瓣后小叶, 二尖瓣后叶Posterior abdominal wall后腹壁posterior palpebral edge睑后缘posterior scrotal nerves阴囊后神经posterior ethmoidal vein筛后静脉