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abandoning (hope, plans); giving up
怪我で出場を断念した。
He gave up competing due to injury.
海外進出の断念は苦渋の決断だった。
Abandoning overseas expansion was a difficult decision.
スキャンダルで彼女は立候補を断念せざるを得なかった。
Due to the scandal, she had no choice but to give up her candidacy.