祖父は砺石で包丁を研いだ。
My grandfather sharpened the kitchen knife with a whetstone.
Pre-Level 1
砺
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Example sentences
5 reference sentences
この砺石は少し粗い。
This whetstone is a little coarse.
職人は刃を砺いでから仕事を始めた。
The craftsman started work after sharpening the blade.
父は古い砺石を大切に使っている。
My father carefully uses his old whetstone.
彼は技術を砺くために毎日練習した。
He practiced every day to hone his skills.