Phosphonate
膦酸盐, 膦酸酯
🗣️ 情景例句
If you have any trouble, let me know.
如果你有任何的麻烦，请告诉我。
What will the weather be like tomorrow?
明天天气怎么样？
Was the noise a cause of the illness, or were the complaints about noise merely a symptom?
是噪音引起了（精神）病呢，还是（精神）病的症状之一是对噪音的抱怨？