gingival marginal atrophy是什么意思，gingival marginal atrophy的翻译，gingival marginal atrophy音标、读音、用法和例句_开心英文字典

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gingival marginal atrophy是什么意思，gingival marginal atrophy的翻译，gingival marginal atrophy音标、读音、用法和例句_开心英文字典_柠咚词