Phosphonate
膦酸盐, 膦酸酯
🗣️ 情景例句
The first word is snow.
第一个字是 雪 。
You can take a horse to the water but you cannot make him drink.
马到河边不喝水，逼马低头亦枉然。（不要逼人做他不愿做的事）
Some of the things were hundreds of years old.
展出的一些东西已有数百年的历史了。