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  1. Oxford American Dictionary

    rotary

    • IPA[ˈrōdərē]

    美式

    • adj.
      (of motion) revolving around a center or axis; rotational；(of a thing) acting by means of rotation, especially (of a machine) operating through the rotation of some part
    • n.
      a rotary machine, engine, or device；a traffic circle.

    • noun: rotary, plural noun: rotaries

    • 釋義

    形容詞

    • 1. (of motion) revolving around a center or axis; rotational a rotary motion
    • ▪ (of a thing) acting by means of rotation, especially (of a machine) operating through the rotation of some part a rotary mower

    名詞

    • 1. a rotary machine, engine, or device there is an output level rotary for overall volume setting
    • 2. North American a traffic circle.