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
Morning.
早安。
May I have a receipt?
我可以要一张收据吗？
He has tasted the sweets and bitters of life.
他已尝遍了人生的甜酸苦辣。