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  1. Oxford American Dictionary

    cavity

    • IPA[ˈkavədē]

    美式

    • n.
      an empty space within a solid object, in particular the human body；a decayed part of a tooth

    • noun: cavity, plural noun: cavities

    • 釋義

    名詞

    • 1. an empty space within a solid object, in particular the human body the abdominal cavity a body cavity
    • ▪ a decayed part of a tooth most dentists fill cavities right away