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| 单词 | sprocket (wheel) |
| 释义 |
sprocket (wheel) UK ['sprɒk.ɪt.wi:l] US ['sprɑ:.kɪt-] specialized noun countable ■a device like a wheel with one or more rows of tooth-like parts sticking out which keeps a chain moving on a bicycle or pulls film, paper, etc. through a machine 链轮；扣链齿 |
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