Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
Have a safe trip!
一路平安。
He that doth most at once doth least.
想一次做完什么事，结果一件也做不完。
Good, we've been waiting a long time.
好，我们已经等好久啦。