Methylenediphosphonic acid(mdp)
[化] 亚甲基二膦酸
🗣️ 情景例句
She takes her exams next week, so she's burning the midnight oil.
她下周要考试，所以在开夜车。
Do you often do composition after school?
你常常在放学后做作文吗？
What did you do at the meeting?
你们在会上做什么呢？