Sorry for what
遗憾───regret;什么───what
I deeply regret what I said.───我非常后悔说了那些话。
She looked back on the past without regret.───她回首往事毫无遗憾。
I came to regret my unconsidered remarks.───我对我那些考虑不周的言辞开始感到后悔。
Richard would be very, very happy with this event, and I deeply regret that he did not live to see it.───如果知道这件事（穆拉迪克被捕），理查德一定非常非常高兴，我很遗憾他没能活着看到这一幕。
Therefore, Beijing is often said to regret it too much, too early to Chongqing regret marriage.───所以，人们常说到北京后悔钱太少，到重庆后悔结婚太早。
Look, dan, it--it was a long time ago, And I regret it. Look, serena, Stop trying to pretend you're a good girl.───听着，丹，这是很久前的事了，我现在也很后悔。瑟琳娜，你就别在那扮好姑娘了。
We regret to inform you that...
Failure is never quite so frightening as regret.
I didn't regret the choice I had made.
I deeply regret what I said.
I only regret that I have but one life to give for my country.