I'm dreadfully sorry.

我感到非常抱歉。

《牛津词典》

I'm dreadfully sorry for you.

我非常同情你。

youdao

Oh, I'm dreadfully sorry to hear that.

听到这些我非常难过。

youdao

Oh, I'm dreadfully sorry to hear that.

听到这些我非常难过。

youdao