Methylenediphosphonic acid(mdp)
[化] 亚甲基二膦酸
🗣️ 情景例句
for them and for myself and for Philip.
为他们， 为我自己和Philip。
You two don't have much contact
？ 你们俩没怎么联系吗？
After years of conditioning, most of us have developed an unshakable faith in railway timetables.
经过多年的适应，大多数人对火车时刻表产生了一种不可动摇的信念。