Tetraprotic acid
[化] 四元酸
🧩 词语组成解析
🗣️ 情景例句
you can pay the mortgage every month.
你们能每月按时付款。
I must know your opinion.Do you agree with me?
我必须知道你的意见.你同意我吗？
The bus was full. We couldn't get on.
车挤得满满的，我们上不去。