名词
中文翻译：氟化物
同义词：
['fluorine', 'fluorine compound']
例句：
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1.The water in the bottle contains fluoride, which can be harmful to your teeth.
瓶子里的水含有氟，对牙齿有害。
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2.Fluoride is often added to toothpaste to help prevent tooth decay.
氟常被添加到牙膏中，以帮助预防蛀牙。
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3. The fluoride treatment has been shown to reduce the risk of cavities in children.
研究表明，氟化处理可以降低儿童患龋齿的风险。