periodontitis
/ˌperɪəʊdɒnˈtaɪtɪs/noun
mass noun
- Medicine inflammation of the tissue around the teeth, often causing shrinkage of the gums and loosening of the teeth【医】牙周炎。
单词 | periodontitis |
释义 | periodontitis/ˌperɪəʊdɒnˈtaɪtɪs/noun mass noun
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