Do You Brush Your Teeth Properly?你真的會(huì)刷牙嗎?
Brushing your teeth effectively lowers your chances of getting a number of chronic diseases, as well as keeping your teeth and gums healthy. But the majority of us are doing it wrong.
有效刷牙可以降低患上各種慢性疾病的風(fēng)險(xiǎn),同時(shí)也能保持牙齒和牙齦的健康。(剩余3448字)