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to question again; to repeat a question (esp. a problematic point, or to verify understanding); to repeat a query
先生は生徒に問い直した。
The teacher questioned the student again.
検察官は証人にその点を問い直して確認した。
The prosecutor questioned the witness again on that point to confirm.
顧客の要件が変わるたびに、前提を問い直す。
Each time the client's requirements change, we revisit the premises.