1. 七彩网.英语单词
牙根；
3. 七彩网·英语单词大全
1. 齿根：07.0823 齿冠 tooth crown | 07.0824 齿根 tooth root | 07.0825 齿颈 tooth neck
noun
1. the part of a tooth that is embedded in the jaw and serves as support
Synonym: root
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