sprag
/spraɡ
/noun
1A simple brake on a vehicle, especially a stout stick or bar inserted between the spokes of a wheel to check its motion.
2A prop in a coal mine.
Origin
Mid 19th cent: of unknown origin.
| 单词 | sprag |
| 释义 | sprag/spraɡ/noun 1A simple brake on a vehicle, especially a stout stick or bar inserted between the spokes of a wheel to check its motion. 2A prop in a coal mine. Origin |
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