| 单词 | 有边缘 |
| 例句 | DEFINITIVE EXAMPLES 权威例句〔grater〕One that grates, as an implement with sharp-edged slits and perforations on which to grate foods.磨碎机：用来摩擦的东西，如一种带有边缘锋利的切口和孔用来磨碎食物的器具美国传统〔worm gear〕A gear consisting of a spirally threaded shaft and a wheel with marginal teeth that mesh into it.蜗轮装置：一种由刻有螺纹的轴和一个带有边缘轮齿的齿轮与之啮合的齿轮传送装置美国传统 |
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