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  1. Oxford Dictionary

    abacus

    • IPA[ˈabəkəs]

    英式

    • n.
      a simple device for calculating, consisting of a frame with rows of wires or grooves along which beads are slid.；the flat slab on top of a capital, supporting the architrave.

    • noun: abacus, plural noun: abacuses

    • 更多解釋

    abacus

    • IPA[ˈabəkəs]

    美式

    • n.
      an oblong frame with rows of wires or grooves along which beads are slid, used for calculating.

    Oxford American Dictionary