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to be renewed; to change
to be improved; to be reformed; to be revised; to be corrected
to stand on ceremony; to be formal
to take a turn for the worse (of an illness); to take a serious turn
姿勢を改まって真剣に話を聞きました。
I straightened up and listened.
年が改まって気持ちも新たになる。
With the new year, my feelings are renewed.
最近彼の態度がすっかり改まったようです。
His attitude seems to have changed.