A crystalline compound, C15H10O2, the parent substance of a number of important yellow pigments, occurring on the leaves or in the stems and seed capsules of many primroses.是什么意思_A crystalline compound, C15H10O2, the parent substance of a number of important yellow pigments, occurring on the leaves or in the stems and seed capsules of many primroses.在线翻译_英语_读音_用法_例句