Last Updated：2025/11/25
Sentence
化学者は19世紀のノートに記されていた謎のペンタン酸塩を慎重に中和した。
Quizzes for review
The chemist cautiously neutralized the mysterious valerianate described in the 19th-century notes.
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The chemist cautiously neutralized the mysterious valerianate described in the 19th-century notes.
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valerianate
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