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A brake in a bicycle or other vehicle in which a piston operated by a lever on the handlebar pushes the brake block on to the tyre.
Late 19th century; earliest use found in Catalogue Safety Bicycles.
雅致网英汉双解词典包含236457条英汉翻译词条，涵盖了常用英语单词及词组短语的翻译及用法，是英语学习的必备工具。