Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
Well, I wasn't clear about my future,
我对自己的未来当时也不清楚，
Who wrote that song?
那支歌曲谁写的？
Once you have done this, you will quickly become a useful member of the teazm.
一旦你这样做了，你很快就会成为工作班子里有用的员。