I am terribly sorry if I let you down.

I heard what he said, I'm terribly sorry.

我听到他所说的，感到很难过。

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I'm terribly sorry to have given you such a lot of trouble.

叫您受累了，真不过意。

《汉英大词典》

I'm terribly sorry, sir. I'll get you another one.

非常抱歉，先生，我给您换一份。

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I am terribly sorry, but something unexpected comes up.

很对不起，出了一件意想不到的事。

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Not really, sir. I'm terribly sorry.

并不想阁下真对不起

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Terribly sorry! I don't know you are her father.

真对不起，我不知道你是她父亲。

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I'm terribly sorry ─ did I hurt you?

非常抱歉，我伤着您了吗？

《牛津高阶英汉双解词典》

I'm terribly sorry not to have done it in time.

没能及时办好，我实在抱歉。

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I'm terribly sorry I brought you along.

我带你过来，实在太抱歉了。

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We are terribly sorry to hear that you have had trouble with your new machine.

听说贵公司的新机器出了点问题，对此深表遗憾。

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I'm terribly sorry to hear that. Thank you.

我很遗憾听到这个消息谢谢

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I'm terribly sorry, I don't think I can.

我很抱歉，我想我不能来。

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I feel terribly sorry for the inconvenience I have caused.

对于由此对公司造成的不便，我深感抱歉。

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I'm terribly sorry. Won't you let me pay for it?

抱歉极了。你同意我赔偿这块桌布吗？

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I am terribly sorry about that, but we really can't help.

我感到非常抱歉，但我们实在是爱莫能助。

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I'm terribly sorry about not calling you this morning.

非常抱歉，今天早上没有给你打电话。

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She was terribly sorry not to have seen you last saturday.

上星期六她没见到你，她非常遗憾。

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I was terribly sorry to hear the news about your mother.

我为你母亲的噩耗感到万分抱歉

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We are terribly sorry that we made so trouble for you.

很抱歉我们为贵公司制造了这么多的麻烦。

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I am terribly sorry, I didn't mean to interrupt you.

真对不起，我并非有意打扰你。

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