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  1. breastbone

    • IPA[ˈbrɛs(t)bəʊn]

    英式

    • n.
      a thin, flat bone running down the centre of the chest, to which the ribs are attached.
    • noun: breastbone, plural noun: breastbones

    • 更多解釋
    • IPA[ˈbres(t)ˌbōn]

    美式

    • n.
      a thin, flat bone running down the center of the chest and connecting the ribs.

    Oxford American Dictionary