rue
verb [ T ] old-fashioned or literary uk/ruː/ us/ruː/ rueing or ruing | rued
对…感到懊悔;对…感到后悔;因为…感到遗憾
to feel sorry about an event and wish it had not happened
Idiom
rue the dayidiom 追悔莫及
to feel very sorry about an event
She'll rue the day (that) she bought that house. 她买了那座房子，以后会追悔莫及的。