英语词汇derailleur怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	derailleur
释义	N17300788derailleurSpoken.0Fiction.3Magazine.779Newspaper.6Academic.0 derailleur /dɪˈreɪlə(r)/ noun a bicycle gear which works by lifting the chain from one sprocket wheel to another of a different size （自行车的）换挡装置。词源 1930s: from French， from dérailler 'derail'.
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