Eupittonic acid
[化] 优皮酮酸; 六甲金精
🧩 词语组成解析
🗣️ 情景例句
That was not the case.
事实并非如此。
In good years corn is hay, in ill years straw is corn.
丰年五谷贱如草，荒年稻草贵如粮。
May I know the quantity you require?
请问你们需要多少数量的货物？