n (1)后(懊)悔，遗憾(sense of distress，guilt or sorrow;feelings of sadness or disappointment)[C，U]：leave home/say goodbye with many～s/much～非常遗憾地离开了家/告别;express/have no～没表示/没有遗憾;feel(no)～for what one has done/at leaving home for so many years 对自己所做的事/离家这么多年(没有)感到后悔;A feeling of infinite～/A sudden pang of～came over him. 他感到无限懊恼/突然极为懊恼。〖同〗sorrow;〖反〗satisfaction;

(2)道歉，歉意(polite expression of apology，esp in a formal refusal of an invitation)[pl](fml)：Please give my～s (to him). 请代我(向他)表示歉意。send one's～(因谢绝邀请等而)表示歉意;Please accept my～s at not being able to go with you. 我不能和你一起去，请接受我的歉意。have no～s for (over/about) one's action/anything one has done/what one did 对自己的行为/自己所做的一切/自己做过的事毫不后悔;

greatly/much to one's regret 深感遗憾(非常抱歉)地：Much to my～，I can't come this evening.非常抱歉，今晚我不能来。

→ re′gretful adj 懊悔的，遗憾的;re′gretfully adv 深感遗憾地;

vt (1)对……感到遗憾(后悔)(feel sorry or upset about(sth sad，annoying，disappointing))[T+n，T+ that，T+wh，T+to-inf，T+ing]：～one's decision/bad actions/foolish behaviour 对自己的决定/不良行为/愚蠢的行为感到遗憾;We～that we missed the concert/that we have no child/what we have said. 没赶上那场音乐会/没有孩子/因所说过的话我们感到遗憾。It is much to be～ed that you can't join us in the trip. 真遗憾你不能和我们一起去旅行。I～to inform you/to say that rents went up. 我很遗憾地通知你/说房租涨了。～not having visited the old lady/selling the farm/having spoken to sb about it 后悔没有去探望老太太/卖掉农场/对某人讲那事;

(2)对……感到惋惜(feel sorry at having lost sth)[T+n]：～one's lost youth/missed opportunities/the loss of sb's friendship 为失去的青春/错过的机会/失去某人的友谊而感到惋惜;～sb's death 为某人的逝世而悲痛;The fire destroyed everything but the only things I really～are my books. 大火烧毁了一切，但使我真正惋惜的是我的那些书。

→ re′gretable adj 令人遗憾(惋惜)的;re′gretably adv 很遗憾(惋惜)地