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七种有利于牙齿健康的食物

Source: 恒星英语学习网    2012-04-01  我要投稿   论坛   Favorite  

Crunchy And Chewy Foods
易碎与耐嚼食物

Crunchy and chewy foods — such as carrots, celery and nuts — cause saliva to flow; saliva neutralizes the acids formed by cavity-causing bacteria. (Sticky and sweet foods, on the other hand, help that bacteria to grow and develop into plaque — a bacterial buildup that can give rise to cavities.
易碎或耐嚼食物,比如胡萝卜、芹菜、坚果,可以促进唾液的分泌,唾液可以中和蛀牙细菌产生的酸。
 


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