Fluoridizer
氟化剂, 氟化器
🗣️ 情景例句
You're still thinking about something to do, aren't you?
你还在想要找点事做， 是吗？
What's been the consumer reaction to your product?
消费者对你们的产品有过什么反映？
That sounds like a good idea.
那听上去是个好主意。