1、后悔[词典]regret; remorse; repent;
2、[例句]（当时）拒绝您的盛情邀请，深感后悔。much to my regret, i refused to accept your kind invitation.
3、埃利斯好像后悔问了这个问题。ellis seemed to be regretting that he had asked the question
4、我并不后悔放弃了婚姻所带来的安全感。i don't regret stepping out of the security of marriage.