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  1. footwall

    • IPA[ˈfo͝otwäl]

    美式

    • n.
      the block of rock that lies on the underside of an inclined fault or of a mineral deposit.
    • noun: footwall, plural noun: footwalls

    • 更多解釋
    • IPA[ˈfʊtwɔːl]

    英式

    • n.
      the block of rock which lies on the underside of an inclined fault or of a vein of mineral.

    Oxford Dictionary