Methylenediphosphonic acid(mdp)
[化] 亚甲基二膦酸
🗣️ 情景例句
but it's too early to know for sure.
但我现在还不能决定。
Lightly come, lightly go.
易得易失。
A man may acquire great knowledge of topics unconnected with his daily work,
一个人可能会获得与其日常工作无关的某些课题的渊博知识，