氟化物
Meanings
- fluoride
Its characters
In sentences
大多数牙膏里含有氟化物。大多數牙膏裡含有氟化物。Most toothpastes contain fluoride. #4456358
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大多数牙膏里含有氟化物。大多數牙膏裡含有氟化物。Most toothpastes contain fluoride. #4456358