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brake block
- IPA[ˈbrāk ˌbläk]
- a block of hard material pressed against the rim of a wheel to slow it down by friction, typically one of a pair made of hardened rubber used on a bicycle.
noun: brake block, plural noun: brake blocks
- 更多解釋
- a block of hard material pressed against the rim of a wheel to slow it down by friction, ...
Oxford Dictionary