Polyprotic acid
[化] 多元酸
🧩 词语组成解析
🗣️ 情景例句
Oh, look at that float, Robbie.
噢 你看那花车 Robbie。
Confidence of success is almost success.
对成功抱有信心，就近乎成功。
John works very hard. He goes to work early.
约翰工作很努力。他早早上班。