我喜欢猫，但遗憾的是我对猫过敏。

I like cats but unfortunately I'm allergic to them.

《牛津词典》

我们曾被指责夸大其词，但遗憾的是，我们所有的报告都证明是真实的。

We have been accused of exaggerating before, but unfortunately all our reports proved to be true.

《柯林斯英汉双解大词典》

但遗憾的是，所有这些想法都被排除在可能性之外。

But sadly all these ideas have been eliminated as possibilities.

youdao

it's a pity that I'm going to die or die too soon, but at least I'm getting more than the average.

我死得太早是很遗憾，但至少我活得比平均寿命长。

耶鲁公开课 - 死亡课程节选

And then they say, "We don't need an extra player, sorry."

但他们却说，“我们已经招满队员了，很遗憾。”

I was 课堂 - SpeakingMax英语口语达人

And I mean, at a certain point, you have to make a decision and I'm sorry for the minority but sometimes, it's for the general, for the greater good.

有时，你必须做出选择,我对少数表示遗憾,但有时，这是牺牲小我，成全大我。

耶鲁公开课 - 公正课程节选