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to change; to alter; to revise; to replace
to reform; to correct; to mend; to improve
to examine; to check; to inspect
to do properly; to do formally
態度を革めて謝罪した。
He changed his attitude and apologized.
古い制度を革めて効率化を図った。
We reformed the old system to improve efficiency.
規則を革めて新しい制度を作った。
They revised the rules and created a new system.