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单词 pyorrhoea
释义 pyorrhoea/paiəˈri:ə/n. (US [] pyorrhea) 1 a disease of periodontal tissue causing shrinkage of the gums and loosening of the teeth 牙槽脓溢 2 any discharge of pus 脓溢 [Greek puo- (from puon ‘pus’) + rhoia ‘flux’ from rheō ‘flow’]
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