1.
Suddenly he realized how compromising the situation was.He mustn't let himself get caught in the trap that day and end up regretting it ever after.
他忽然省悟这情势太危险，今天不该自投罗网，后悔无及。
2.
Win or lose, never regret.
无论胜负，决不后悔。
3.
It was too late now for repentance.
现在后悔已来不及。
4.
Do not say things that you will regret.
不要讲了话而后悔莫及。
5.
Marry in haste, and repent at leisure. -- John Ray
草率成婚，后悔莫及。——雷
6.
And we sigh for it in vain;
我们叹息已无用，也无从后悔；
7.
To regret in vain what cannot be undone or rectified.
无益地后悔对未能完成或不能恢复的事情作徒劳的后悔
8.
cry over spilled milk
"为打翻的牛奶流泪,做无益的后悔"
9.
"I lost my job. Oh well, it's no use crying over spilt milk."
我失去我的工作噢!后悔是无益的。
10.
She regrets marrying that do-nothing.
她很后悔嫁给那个无所事事的人。
11.
A man without a long head would regret what he has done.
无远见的人将后悔自己所做的事。
12.
Though I had no regrets, there was an emptiness in my heart. I was like a lone and drifting cloud.
我不后悔，只觉得空虚，像一片云那样的无倚无靠。
13.
not penitent or remorseful.
不知悔悟的或无悔意的。
14.
overburdened with guilt, remorse, debt
罪过深重、 追悔无及、 负债累累.
15.
With further delay it will be too late to repent.
再要推延，就会悔之无及了。
16.
How little Franz regretted that he had wasted so much time!
小弗朗兹浪费了那么多时间后悔莫及！
17.
If the offender sincerely repents and mends his ways, after the twoyear reprieve expires, the punishment can be reduced to life imprisonment;
如果确有悔改，二年期满以后，减为无期徒刑；
18.
Don't regret about your past as it is useless,But prevent the same mistake in the future.
后悔药吃也无用,要防止再犯同样的错误。