| 单词 | knife grinder |
| 释义 | knife grindernoun1 : one that grinds knives: such as a : an itinerant tradesman who sharpens knives or other edged tools b : a device (as a grindstone or emery wheel) used for grinding or sharpening knives or other edged tools 2 : a European nightjar (Caprimulgus europaeus) |
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