Unfortunately, knowing what the clean version--knowing what the word is means to me the clean version is not very clean.

很遗憾,在知道了和谐版的歌词之后,我发现和谐版也不怎么和谐

耶鲁公开课 - 心理学导论课程节选

I don't really have the opportunities to study math and science, which, to some degree, I think is regrettable

我没什么机会继续学习数学和科学。我有时觉得有些很遗憾，

文学是灵魂的方式 - SpeakingMax英语口语达人

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

I don't play the currency market, unfortunately, because currency has gone down so much.

很遗憾我没有企图在货币市场上牟利，因为货币市场最近跌幅巨大。

耶鲁公开课 - 金融市场课程节选

I'm sorry to say that this is the wrong answer.

我很遗憾地说这是。

麻省理工公开课 - 热力学与动力学课程节选