A sweet - tasting crystalline nonessential amino acid, C2H5NO2, that is the principal amino acid occurring in sugar cane.It is derived from the alkaline hydrolysis of gelatin and used in biochemical research and medicine.是什么意思_A sweet - tasting crystalline nonessential amino acid, C2H5NO2, that is the principal amino acid occurring in sugar cane.It is derived from the alkaline hydrolysis of gelatin and used in biochemical research and medicine.在线翻译_英语_读音_用法_例句