Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
When do you think we'll be through?
你认为我们什么时候能完毕？
What did the doctor say?
医生怎么说？
I thought he must have misunderstood me, so I repeated its name.
我想他一定误解了我的意思，于是又说一遍村庄的名字。