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  1. Oxford Dictionary

    ball float

    • n.
      the spherical float attached to a hinged arm in the ballcock of a water cistern.

    • noun: ball float, plural noun: ball floats

    • 更多解釋

    ball float

    • IPA[bôl flōt]
    • n.
      the spherical float attached to the pivoting arm of the ballcock in a toilet tank.

    Oxford American Dictionary