... withering teeth 释义:齿槁 yellowish teeth 释义:齿黄 injury teeth 释义:牙损伤 ...
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The teeth are subject to caries (decay), caused by acid from bacteria In plaque, a yellowish film that builds up on teeth.
牙齿易成为龋齿(蛀牙),由齿面的淡黄色薄膜(齿斑)上的细菌制造出的酸而造成。
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