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
you have a meeting with the production staff
要与生产部门人员开会，
Lemonade on a hot day is very refreshing.
在暑天喝柠檬水，会使人精神抖擞。
Check your answers with mine.
把你的答案跟我的核对一下。