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1. Oxford American Dictionary

   sprag

   • IPA[spraɡ]

   美式

   • n.
     a simple brake on a vehicle, especially a stout stick or bar inserted between the spokes of a wheel to check its motion.；a one-way clutch that keeps a vehicle from rolling backwards.

   • noun: sprag, plural noun: sprags

2. • 釋義

   n.

   名詞

   • 1. a simple brake on a vehicle, especially a stout stick or bar inserted between the spokes of a wheel to check its motion.
   • ▪ a one-way clutch that keeps a vehicle from rolling backwards.
   • 2. a prop used to support a roof, wall, or seam.
3. • 更多解釋

   sprag

   • IPA[spraɡ]

   英式

   • n.
     a simple brake on a vehicle, especially a stout stick or bar inserted between the spokes of a ...

   Oxford Dictionary