but unfortunately the days when I could go were never available. It didn't work out.

但可惜的是，我没时间去。没能实现这个心愿。

蒂姆伯顿最棒 - SpeakingMax英语口语达人

But, unfortunately, there aren't good animal models for many of the diseases that we'd like to study.

但是很遗憾的是,对于很多我们想要研究的疾病,并不能找到合适的动物模型

耶鲁公开课 - 生物医学工程探索课程节选

But unfortunately, this is incredibly underwhelming certainly in the first week of a course.

但不幸的是，它不能让我们,在第一周的课程里留下深刻的印象。

哈佛公开课 - 计算机科学课程节选

But unfortunately, gas stations, as we all know, they tend to crowd into the same corners, they tend to be on the same road junctions, right?

但是很不幸的是,加油站,如我们所知,它们一般都在设在相同的地点,他们趋向设立于同一个路口,对吧

耶鲁公开课 - 博弈论课程节选

There's some space up in heaven where all the unborn babies are that will live in the future and, unfortunately, they're not able to have a town meeting; but, let's suppose they could.

想象一下在天堂的某处,所有尚未出生但即将诞生的小婴儿们在那儿，可惜的是，他们开不了人民大会吧;,不过，我们假设这能成真。

耶鲁公开课 - 金融市场课程节选

Unfortunately, this is also call the Rydberg constant, so it's a little bit confusing. But really it means h the Rydberg constant divided by h, and that's equal to 3 .

不幸的是，它也叫Rydberg常数，所以这可能会有点混淆,但它表示Rydberg常数除以。

麻省理工公开课 - 化学原理课程节选

And in chemistry, just like in any discipline, you have all types of scientists, but also all types of personalities, and unfortunately Pauli had a personality that was known for, first of all, being very arrogant, but also the very unfortunate trait of taking other people's scientific ideas as his own.

在化学里，就像在任何学科中一样，有各种各样的科学家，也就有各种各样的性格，不幸的是，Pauli的性格，是以傲慢闻名，另外一个特点就是喜欢,把别人的观点占为己有。

麻省理工公开课 - 化学原理课程节选