Triprotic acid
[化] 三元酸
🧩 词语组成解析
🗣️ 情景例句
Thank you.
谢谢你 。
Every door may be shut but death's door.
除了死门外，每门都可关。
Wei Hua's pen was broken, so she needed a new one.
魏华的钢笔坏了，所以她需要一支新笔。