Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
The work is in full swing.
工作正在全力进行。
Wisdom is a good purchase though we pay dear for it .
为了求知识，代价虽高也值得。
No matter what he's wearing, Tod, just show him the cheapest.
托德，别管他的穿着了，给他最便宜的看看就得了。