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	derailleur/diˈreilə, -ljə/n. a bicycle gear in which the ratio is changed by switching the line of the chain while pedalling so that it jumps to a different sprocket (自行车的)变速器，换档装置 [French dérailleur (as DERAIL)]
随便看	follow follower following follow-on follow on follow one's nose follow (or tread) in a person's footsteps follow out follow suit follow-the-leader follow-through follow through follow-up follow up folly foment fomentation fomenter fond fondant fondant icing fondle fondler fondly fondness

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