So this, unfortunately, is the last time that I am teaching positive psychology or any other class for that matter at Harvard.

不幸的是这学期将是我最后一次，在哈佛开设积极心理学或其他课程。

哈佛公开课 - 幸福课课程节选

But that, unfortunately or fortunately, depending on your viewpoint,

但是，不幸或幸运的是，这取决于你的眼光，

以古董闻名于世 - SpeakingMax英语口语达人

And so very often I would find myself with gigabytes worth of data, at night I needed to analyze this data and look for this patterns and frankly the reality was sometimes I could spend 10-15 minutes whipping up a little script, a little program that unfortunately would take eight hours or more to run.

我经常会发现十亿字节的数据,晚上我就需要分析这些数据并,找出模型，坦白说，有时,我会花10-15分钟来编写一个小脚本，一个小程序,但不幸的是，运行它可能需要8个小时或更多时间。

哈佛公开课 - 计算机科学课程节选

And, so, you had this rather odd situation where instead of dogs guarding their masters or mistresses, you had the masters and mistresses guarding the dogs against people who would take the dogs and, unfortunately, kill them and eat them.

真是因为如此,产生了一种奇怪的现象,通常情况下是狗来守护主人的,而现在呢,主人必须时时刻刻保护自己的狗,以免被人抓去宰了吃

耶鲁公开课 - 1871年后的法国课程节选