Phosphonic acid
[化] 膦酸
🧩 词语组成解析
a. 膦的, 膦酸的
🗣️ 情景例句
Please, after you.
你先请。
I wish I were running across an open field.
我真希望在原野奔跑。
It must be a D.
这一定是“D”。