| 单词 | cogwheel |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔cog〕A cogwheel.嵌齿轮美国传统〔engage〕One cogwheel engages with the next.齿轮一个个啮合在一起。牛津高阶〔engage〕The cogwheels are not engaging.齿轮未啮合在一起。牛津高阶〔pinion〕A small cogwheel that engages or is engaged by a larger cogwheel or a rack.小齿轮，齿杆：啮合大齿轮或被大齿轮或齿条啮合的小齿轮美国传统 |
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