Tetraprotic acid
[化] 四元酸
🧩 词语组成解析
🗣️ 情景例句
No. Please endorse the check at the back.
不会的。请在支票的背面签名。
Can you ever forgive me?
你真的肯原谅我吗？
He became a supporter of the poorest group in society, who did the lowest-paid jobs.
他成为社会中那些从事工资最低的工作的，最穷种姓的支持者。