磨刀石 [－－－]

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Definitions (CC-CEDICT)
  1. whetstone (for honing knives)
Definitions (粵典–words.hk)
  1. 名詞
    用​嚟​磨刀​嘅​堅​硬​物料
    sharpening stone
Definitions (Wiktionary)
  1. noun
    grindstone; whetstone
    (syn.) 磨石, 刀石