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n.牙;齿;齿状部份;vt.给…装齿;vi.啮合; 变形: 复数:teeth 双语释义:n.(名词)[C]牙,齿 each of the hard white bony structures rooted in the gums, used for biting and chewing英英释义: tooth[ tu:θ ]n.hard bonelike structures in the jaws of vertebrates; used for biting and chewing or for att