Definition
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理由
riyū
物事の理由や根拠を示す言葉。
A word that indicates the reason or basis for something.
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彼はその決定の理由を説明した。
Kare wa sono kettei no riyū o setsumei shita.
He explained the reason for that decision.
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私たちはその問題の理由を探しています。
Watashitachi wa sono mondai no riyū o sagashiteimasu.
We are looking for the reason for that issue.
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あなたが遅れた理由は何ですか?
Anata ga okureta riyū wa nan desu ka?
What is the reason you were late?