Polyhydrate
多水合物
🗣️ 情景例句
She went to a school-board meeting.
她去参加联合校董会会议了。
Not only did he make a promise, but he also kept it.
他不仅许下诺言，而且遵守了。
Thank you. Lucy and Lily, come here, please.
谢谢你，露茜和莉莉，请过来吧！