Cationite
阳离子交换剂
🗣️ 情景例句
I hope so.
希望没事。
The roof has leaks in it,and the front step need to be fixed.
房顶有漏缝，并且前面台阶需要修理。
He goes home early everyday for fear that his wife would be angry.
他每天很早就回家，免得老婆生气。