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Is Fluoride Toothpaste Harmful? 含氟牙膏有害吗?-时代英语·高一2024年06期

Is Fluoride Toothpaste Harmful? 含氟牙膏有害吗?

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Fluoride is a mainstay of dental care, whether it’s delivered in a treatment at your dentist’s office or in your toothpaste. But fluoride has become the focus of several conspiracy theories over th(试读)...

时代英语·高一

2024年第06期