pytpretty young thing 可爱的年轻女郎、小动物； abbr.；=pretty young thing 漂亮的小东西Pn.字母Ppyridine hydrochloride盐酸吡啶p-tolyl benzyl ether对甲苯基苄基醚pyrazine carboxylamide吡嗪酰胺P blood group antigensP血型抗原Pyridoxine measurement吡哆醇测量Pyrunculus longiformisn.长形梨螺Pyridoxine preparation吡多辛制剂Pyrrhulina filamentosan.丝带霞脂鲤(窄口鱼科)Pythium aphanidermatumn.瓜果腐霉p-Fluorobenzoic Acid对氟苯甲酸