Anders Wilhelmson says the sanitation process can take as little as a couple of hours or as long as two to four weeks.

VOA: special.2010.03.15

Some of you may enjoy doing crossword puzzles, and perhaps doing crossword puzzles a couple hours a day is enjoyable.

有人可能爱玩填字游戏，也许每天玩几小时的,填字游戏，依然让人兴致盎然。

耶鲁公开课 - 死亡课程节选

I'm actually going to go get dinner at the Hyatt in a couple hours.

我要去那边的凯悦酒店吃晚餐，大约两个小时。

充满乐趣 - SpeakingMax英语口语达人

A couple of hours, because typically there's just one battle; one side beats the other and that's the war for now.

几个小时,一般来说只有一次战斗,一方攻打另一方,这就是战争

耶鲁公开课 - 古希腊历史简介课程节选

And you throw it off in a couple of hours and maybe stay up late.

你花几个小时写出来，也许还熬夜了。

耶鲁公开课 - 死亡课程节选

I stress it in particular because I know you're all going to get into this stage; you've got a problem set due in a couple of hours, you're still writing the code, you don't want to waste time, and I'm going to use quotes on "waste time", doing those extra things to do the defensive programming, you just want to get the darn thing done.

我特别强调了这一点,因为我知道你们都会慢慢成为程序员;,你在写代码过程中造成了一系列的错误，你还在写代码，你不想浪费时间，我想把“浪费时间“用引号圈起来，浪费时间来做因为防卫性程序设计，而带来的这些额外的事情,你只想赶紧把程序写完，这不是一个好习惯，因为当你做完回头。

麻省理工公开课 - 计算机科学及编程导论课程节选

where i'm working, you know, twelve hours a day for a couple a months of the year.

一年里好几个月我都是每天工作1２个小时。

为什么是会计学呢？ - SpeakingMax英语口语达人

A weird thing which is discussed in the textbook is if you wait a while and then you try it again with the bell after a couple of hours, the saliva comes back.

教材中讨论了一件奇怪的事情,如果你稍等一会,在几个小时之后用铃声重新去尝试，狗会重新开始分泌唾液。

耶鲁公开课 - 心理学导论课程节选

So a couple of FAQ's that have come up in section or rather in office hours.

两三个FAQ被提出了，在章节中或,在办公时间中。

哈佛公开课 - 计算机科学课程节选

But I think if you can imagine, up to a couple of hours would be about right.

但是如果你想一下的话,最多几个小时吧

耶鲁公开课 - 古希腊历史简介课程节选

Hard to imagine anybody doing this for more than a couple of hours.

很难想象谁能持续几个小时这样做

耶鲁公开课 - 古希腊历史简介课程节选

Course assistants as we use the jargon are alumni of CS50 who return to the course for a couple of hours a week having taken it in prior years, to help you, the newest batch of students, one on one with office hours, with problem sets; and similarly do the CS function as they might in many courses.

课程助理用我们的行话说就是CS50校友0,他们在前几年一直都是一周回来几个小时,来帮助你们这些新生，在上机的时候以一对一的方式，帮助你们完成这些问题集,在很多其他课程中他们也是这么做的。

哈佛公开课 - 计算机科学课程节选