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  1. joist

    • IPA[joist]

    美式

    • n.
      a length of timber or steel supporting part of the structure of a building, typically arranged in parallel series to support a floor or ceiling.
    • noun: joist, plural noun: joists

    • 更多解釋
    • IPA[dʒɔɪst]

    英式

    • n.
      a length of timber or steel supporting part of the structure of a building, typically arranged ...

    Oxford Dictionary