Fluoridating
v. 在饮水中加少量之氟（以防儿童蛀牙）( fluoridate的现在分词 )
🗣️ 情景例句
Farming is a hard way to make a dollor.
农业很难赚钱。
My fever is gone,but I still have a cough.
我的发烧好了，但是我仍然患咳嗽。
Kate, I'm sorry about that argument. I apologize for being so angry with you.
凯特，那次争吵我很抱歉。我为跟你发火向你道歉。