Lactamine
丙氨酸
🗣️ 情景例句
Would you mind opening your suitcase?
请把您的箱子打开，好吗？
What will you wear for the party?
晚会上你穿什么？
but I lacked for nothing, for he was both father and mother to me.
但我却什么都不缺，他既当父亲又当母亲。