Fluoridizer
氟化剂, 氟化器
🗣️ 情景例句
Mom, you're winning!
妈妈， 你赢了！
The offer is made without engagement. All orders will be subject to our written acceptance.
此报盘没有约束力，所有定单以我方书面接受为准。
During a holiday in Sweden, I found this note on my car: 'sir, we welcome you to our city.
“先生，欢迎您光临我们的城市。