Polyanhydrides
[化] 聚酐类
🗣️ 情景例句
If you can't pay the bill, you're going to be in trouble.
你如果不能付账，就要倒霉。
Kill the goose that laid the golden egg.
杀鸡取蛋
By correlating markings made in various parts of the world, historians have been able to read this difficult code.
历史学家通过把世界各地留下的这种痕迹放在一起研究，终于弄懂了这种费解的代码。