We should never be regretful until losing.
我们应该在失去前都不后悔。
He will be regretful his not treating you well before if you are richer.
他看到你现在生活比他富裕，一定后悔当初没有好好对你。
Some day when I look back on these days, I will not be regretful of what I have done.
有一天当我回首这段日子，我不会后悔于我所做的一切。
I don't want to waste my time, or I will be regretful when I look back at my childhood.
我不想要浪费时光，不然在回望童年的时候会感到后悔。
Cherish your trees for good, otherwise you'll be regretful and mournful when they're uprooted by storms and stop breathing.
珍惜我的树吧，不要等到暴风雨把他们连根拔起、呼吸停止时才后悔感伤。
Once the students enter the button, there is no way for them to be regretful, even though they know the correct answers later.
一旦学生按下按钮，就没有反悔的余地了，即使他们随后知道正确答案。
Tom Dooley, you have done something wrong, and its too late to be regretful. All you can do now is simply bow your head and cry.
汤姆·杜利，你已经做错事了，并且后悔已来不及了。你现在所能做的只有低下头哭泣罢了。
Comparing with the flourishing research and progressively practice, to be regretful, the principle has not been paid much attention in China.
遗憾的是，与“或引渡或起诉”原则实际适用的蓬勃发展的态势相比，这一原则在我国的理论研究甚少。
Otherwise I will be more regretful later.
否则我以后会更加后悔。
Factor in a host of other complex variables, and it might simply be easier to avoid making the decision at all, rather than wade through the depressing list of regretful scenarios.
再考虑到许多其他的复合变量，与在各种让人头疼的烦人景象中艰难的做出选择相比，读者们也许更容易放弃做这个选择。
Also, something regretful can be regarded as happiness for there is still something that is worth your regretting.
遗憾，也是一种幸福。因为还有令你遗憾的事情。
No kidding, please. After reading others' reply, you will remember, in your life, there used to be a lot of regretful affairs.
你不要开玩笑了，看了很多人的回复，你会想起，在你生命中，曾经发生多少令人遗憾的事情。
Those who still waste life jn doubt and fear. fooling arouml here and there, remember that when the days of youth are passed. you will be too late to feel regretful.
（提醒人们切勿浪费时间）仍在疑虑中虚度年华，仍在到处游手好闲的人们啊，请记住：当青春不再，后悔也来不及了。
Now I feel regretful, if I insist, I could be the girl that let my parents be proud of.
现在我后悔了，如果我坚持，我可以成为让我的父母感到骄傲的女孩。
It is not the wise choice for people let out their bad mood, because when they calm down, they will be very regretful for what they have done to their families and friends.
这对于人们来说不是发泄坏心情的明智选择，因为当他们冷静下来，就会为自己对家人和朋友所做过的事情后悔。
You are regretful to be my this lifetime's, Now, my love is in there, I am missing that mark pure time as before.
你是我这一生的遗憾…如今，我的爱又在哪里，我依然思念着那分纯真的年华。
I am regretful to be unable to feel extraordinary this school term fails to study to expensive school.
本人也感应十分遗憾这个学期未能到贵校进修。
Do not be moved by the man feeling sorry for you, because psychologically speaking, he who feels regretful subconsciously starts to repel you.
不要被男人对你的愧疚心感动。因为按心理深层因素分析，当他对你有愧疚感的时候，通常在潜意识里开始排斥你了。
Avoid this kind of the most regretful failure to be able to come from the personal reserve in state of mind and intellectual respect be developed adequately.
避免这种最遗憾的失败能来自己在心态和知识方面的储备充分发挥出来。
We can't imagine if there were no music written by him, how regretful the movies of Gong Qijun's would be.
我们很难想象假如没有他的音乐，宫崎骏的电影将会有多么的缺憾。
Although Taizong was regretful, he dared not blame Weizheng because he wanted so badly to be a worthy ruler who could accept criticism. In the end, he had to give up the hobby of raising young birds.
唐太宗虽然懊恼，却不敢怪罪魏征，因为他太想做好一个能纳谏的贤君，只好不再玩小鸟了。
Although Taizong was regretful, he dared not blame Weizheng because he wanted so badly to be a worthy ruler who could accept criticism. In the end, he had to give up the hobby of raising young birds.
唐太宗虽然懊恼，却不敢怪罪魏征，因为他太想做好一个能纳谏的贤君，只好不再玩小鸟了。
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