They saw certain patterns or certain ways of elaborating patterns that the teachers were talking about and, lo and behold, the fifty minutes was over and everybody had had a pretty good time.

他们听着老师以某一种,特别的方式进行讲解，瞧，短短的五十分钟很快就过去了！,而且每个人都听得很开心。

耶鲁公开课 - 文学理论导论课程节选

Steve Lerman Hello, my name is Steve Lerman, And I will be giving a fifty-minute lecture.

大家好，我的名字叫，我将做一个五十分钟的讲座。

麻省理工公开课 - 媒体、教育、市场课程节选

Two hours,you can be on a damn train to New York City and you'll be lucky if you get eighty miles in two hours, or an hour and fifty minutes.

要知道,两个小时都可以做火车去纽约了,但如果是步行,八十公里你一个小时五十分钟,到两个小时内走到就算不错了

耶鲁公开课 - 1871年后的法国课程节选