Tetraprotic acid
[化] 四元酸
🧩 词语组成解析
🗣️ 情景例句
That'll be our first one,
这将成为我们的第一件，
He is playing on the merry-go-round in the park.
他正在公园里骑旋木马。
You're just in time for the football match.
你正好赶上足球比赛。