Diprotic acid
[化] 二元酸
🧩 词语组成解析
双质子的
🗣️ 情景例句
Attending school is compulsory in this country.
这国家衽的是义务教育。
How much do you charge for sending a cable transfer to London?
发一张到伦敦的电汇，要收费多少？
What did Wang Wei write about in her letter?
王伟在信里写了什么？