英语词汇“derailleur”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	derailleur
释义	Word Frequency derailleur (dəˈreɪljə) noun a mechanism for changing gear on bicycles, consisting of a device that lifts the driving chain from one sprocket wheel to another of different size Word origin French dérailleur derailer
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