I bought the house on the realtor's recommendation and have regretted it ever since.我在房地产经纪人的建议之下买了这房子，买后一直后悔不已。She must rue the day she ever met him.她一定为遇见他而后悔不已。His thoughts terminated, in regret.他想到最后后悔不已。I gave in to him, and I've regretted it ever since.我向他让步了，后来我一直为此后悔不已。