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	precedently precent precentor precentorship precept preceptive preceptor preceptorial preceptorship precession precessional precession of the equinoxes pre-Christian precinct preciosity precious preciously precious metals preciousness precious stone precipice precipitability precipitable precipitance precipitancy

英汉双解词典包含94788条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。