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  1. drumlin

    • IPA[ˈdrʌmlɪn]

    英式

    • n.
      a low oval mound or small hill, typically one of a group, consisting of compacted boulder clay moulded by past glacial action.
    • noun: drumlin, plural noun: drumlins

    • 更多解釋
    • IPA[ˈdrəmlən]

    美式

    • n.
      a low oval mound or small hill, typically one of a group, consisting of compacted boulder clay ...

    Oxford American Dictionary