The noun 'derailleur' specifically refers to a bicycle's gear-changing mechanism or a bicycle equipped with one.
名词 'derailleur' 特指自行车的变速器，或带有变速器的自行车。
| 单词 | derailleur |
|---|---|
| 音标 | [dɪˈreɪljə(r)] [dɪˈrelɚ] |
| 释义 | n.["<法>（自行车）变速器，装有变速器的自行车"] |
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