Railroads is a good example--and sometimes I'll throw out examples, you're not responsible for them, it's just kind of hopefully interesting for you to think about.

铁路就是很好的例子,有时我会举一些例子,你们可以不去记他们,我这么做是希望你们可以去思考

耶鲁公开课 - 1871年后的法国课程节选

So I would write that and then sometimes I'd have other work for those classes.

我会赶紧写作业，有时还要写其他课的作业。

耶鲁的忙碌生活 - 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 I don't think I really will win, but sometimes it's fun to play anyway.

我从未觉得我会中奖，可是有时就觉得很好玩。

沉迷于彩票的人们 - SpeakingMax英语口语达人

Sometimes I write my feelings down on paper to release stress.

有时我会把我的感受写在一张纸上来释放压力。

Why don't 实战 - SpeakingMax英语口语达人

Sometimes I ask myself why I'm mothering 80 students

有时我会问我自己，为什么要照顾80个学生，

教授的梦想 - SpeakingMax英语口语达人