其实每天的强迫性刷牙会损害口腔健康，造成蛀牙增多和牙齿脱落。
Well, actually, our obsessive-compulsive tooth-brushing practices lead to deteriorating oral health, including increased Numbers of cavities and eventual tooth loss.
葡萄牙科学家说，他们研发出一种实验性疫苗能防止蛀牙，而它已在实验室的老鼠身上证实有效，这将有助开发防止人类龋齿的疫苗。
Portuguese scientists said they had developed an experimental vaccine against tooth decay which was successful in laboratory tests on rats and could pave the way for a version that works for humans.
其实每天的强迫性刷牙会损害口腔健康，造成蛀牙增多和牙齿脱落。
Well, actually, our obsessive - compulsive tooth-brushing practices lead to deteriorating oral health, including increased Numbers of cavities and eventual tooth loss.
随着年岁渐长，蛀牙逐渐不成为问题，而牙龈健康则越来越重要，这就是用牙线洁牙的重要性所在。
As you age, cavities become less of an issue, and gum health becomes much more important. That's why flossing is so crucial: it is particularly good for gum health.
随着年岁渐长，蛀牙逐渐不成为问题，而牙龈健康则越来越重要，这就是用牙线洁牙的重要性所在。
As you age, cavities become less of an issue, and gum health becomes much more important. That's why flossing is so crucial: it is particularly good for gum health.
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