Pyrophosphoric
[医]焦磷酸
🗣️ 情景例句
Those were great days and we were very happy.
那些日子美好极了，我们过得很幸福。
The best mirror is an old friend.
老朋友是最好的镜子。
The railway station was big, black and dark.
火车站很大，又黑又暗。