Phosphonate
膦酸鹽, 膦酸酯
??? 情景例句
You're right.
你說的對。
Fifty-litre carboy would be the most economical size. Carboys may be retained without charge for two months.
50升的瓶子應是最經濟的尺碼，這些瓶子可免費保存兩個月。
In the letter he was asked to call at the station.
要他到警察局去一趟。