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.
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