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Ppyruvic phosphoroclasm丙酮酸磷酸裂解Pythium salpingophorumn.角柄腐霉p-aminobenzoate acid对氨基苯甲酸pyrrolizidine alkaloid双苄基异喹啉类生物碱p-toly amino fluoran对-甲苯氨基荧烷pyrimidine nucleosides嘧啶核苷类pyruvate phosphokinase丙酮酸激酶pyridoxylidene glycine吡哆甘氨酸P.E. in university高校体育pyrazolone Schiff base吡唑酮席夫碱