Last Updated：2025/12/05
Sentence
考古学者はその破片を、何世紀も前に刃を研ぐために使われた砥石だと特定した。
Quizzes for review
The archaeologist identified the fragment as a toolstone used for sharpening blades centuries ago.
See correct answer
The archaeologist identified the fragment as a toolstone used for sharpening blades centuries ago.
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Related words
toolstone
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