Phosphonic
a. 膦的, 膦酸的
🗣️ 情景例句
Not a lot.
没什么重要的事啦。
One foe is too many; and a hundred friends too few.
朋友成百犹觉少，仇敌一人已嫌多。
What are the selling points of your product?
你们的销售重点是什么呢？