Dentists recommend cutting down on sugary or starchy foods between meals as they give bacteria fuel to produce acids that decay teeth.

牙医们建议两餐之间少吃含糖或淀粉的食物，因为这相当于给细菌提供燃料，让它们产生蛀坏牙齿的酸。

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Sugar can cause tooth decay by being used as a food source for the bacteria found on our teeth, which causes plaque.

糖通过被那些存在我们牙齿的引起斑块的细菌作为一种食物来源，可以导致牙齿腐烂。

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Cavities in teeth are caused by decay.

牙齿上的空洞是由龋蚀造成的。

《新英汉大辞典》

The report says scientific evidence suggests "almost every proven method to prevent decay includes delivery of fluoride to teeth surfaces".

BBC: Tooth decay in children too high, says chief dental officer

Left untreated, what's termed "early dental caries" -- the first stage of tooth decay -- can destroy tiny teeth and lead to infection, pain, and lifelong consequences.

CNN: Baby's teeth: What you should know

This acid attacks the enamel on the teeth and leaves them vulnerable to decay.

BBC: Dental threat of snacking