Once the poleis are in place, they will spend a great deal of time fighting each other.

一旦城邦在某地建立,他们就会花上很长一段时间相互争斗

耶鲁公开课 - 古希腊历史简介课程节选

where I would have, I think four classes one after the other on Wednesdays.

在那一段时间，我在周三会连续上四节课。

耶鲁的忙碌生活 - SpeakingMax英语口语达人

We won't come back to it at least for the moment, but you see that it's mercifully short, and as time passes we will do some rather interesting tricks with it.

至少我们这节课用不上，看，这篇故事很短，过一段时间我们会针对它做一些很有趣的练习。

耶鲁公开课 - 文学理论导论课程节选

But it's also a time that I have an academic and intellectual interest diddling.

我也曾有段时间,在学术和思想研究方向上摇摆不定。

普林斯顿公开课 - 人性课程节选

Alright, this is going to take a while.

好了，这得花上一段时间。

麻省理工公开课 - 计算机科学及编程导论课程节选

Idealism is a position that's got a very long history in philosophy and for many classes would be worth taking a fair bit of time to consider more carefully.

唯心主义这个观点,在哲学史上占据了很长一段时间,并且值得我们花几节课,时间用心解读这个观点

耶鲁公开课 - 死亡课程节选

They can be on store shelves for a long period of time, and that has to do with the economics of food, especially food available to the poor, which we'll discuss later.

因此可以在商品货架上销售很长一段时间,这也与食物的经济学价值有关,特别这类食物穷人也买得起,这个我们以后会讨论

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It dropped dramatically in the period from 1954-- this is these filled black bars refer to this axis, polio cases per 100,000 population dropped down to only three or four cases by 1956.

患病率在一九五四年后的,一段时间里急剧下降,该坐标轴上的这些黑色柱形图表明,到一九五六年,小儿麻痹症的发病率,已经降低至每十万人中仅三到四人发病

耶鲁公开课 - 生物医学工程探索课程节选

And why is it going to take a while?

为什么要花上一段时间呢？

麻省理工公开课 - 计算机科学及编程导论课程节选