Methylenediphosphonic acid(mdp)
[化] 亚甲基二膦酸
🗣️ 情景例句
Thank you.
谢谢。
By the way,who are you waiting for?
顺便说,你正在等谁？
This is a major achievement because, in relative terms, planets are very small and old not emit light.
这是一个重要的成就，因为相对来说，行星很小，而且也不发光。