ultimate wheel

名词 n.

英文释义

名词 n.
  1. A type of unicycle without a frame or seat, consisting of only two pedals attached to a wheel.
    — It is also interesting to note the number of different types and designs of cycles, including the so-called “ultimate wheel”—a wheel with pedal arms and pedals but no frame or saddle or handlebars.

词形变化

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