Phosphonic
a. 膦的, 膦酸的
🗣️ 情景例句
A large number of American radio stations operate in the red.
许多美国电台亏损经营。
Yes, it's much better than yesterday.
是的，比昨天好多了。
I was walking home when I met Dave.
我碰到大卫时，我正往家走。