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1. Oxford American Dictionary

   pulley

   • IPA[ˈpo͝olē]

   美式

   • n.
     a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.；(on a bicycle) a wheel with a toothed rim around which the chain passes.
   • v.
     hoist with a pulley

   • verb: pulley, 3rd person present: pulleys, gerund or present participle: pulleying, past tense: pulleyed, past participle: pulleyed

   • noun: pulley, plural noun: pulleys

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. a wheel with a grooved rim around which a cord passes. It acts to change the direction of a force applied to the cord and is chiefly used (typically in combination) to raise heavy weights.
   • ▪ (on a bicycle) a wheel with a toothed rim around which the chain passes.
   • ▪ a wheel or drum fixed on a shaft and turned by a belt, used especially to increase speed or power.

   v.

   動詞

   • 1. hoist with a pulley the tree house was built on the ground and pulleyed into the branches

   pulley block

   • n.
     a block or casing in which one or more pulleys are mounted.

   Oxford American Dictionary

   pulley block

   • n.
     a block or casing in which one or more pulleys are mounted.

   Oxford Dictionary

3. • 更多解釋

   pulley

   • IPA[ˈpʊli]

   英式

   • n.
     a wheel with a grooved rim around which a cord passes, which acts to change the direction of a ...
   • v.
     hoist with a pulley: the tree house was built on the ground and pulleyed into the branches

   Oxford Dictionary