(1)悔恨を感じる
(2)遺憾に感じる
(3)罪悪感を感じる悔恨する
(4)feel remorse for; feel sorry for; be contrite about
さらに詳しく
(1)報復を正当化するほど強い憤り
(2)a resentment strong enough to justify retaliation
(3)a resentment strong enough to justify retaliation; "holding a grudge"; "settling a score"
