工夫的英文：
work
labor
effort

参考例句：

He took my dreadful exhibition of receipts, he put on his glasses, he took his pen, and presto! —I was a pauper!
他接过了那些琳琅满目的、为数惊人的收入凭证，戴上眼镜，提起了笔，接着，一眨眼工夫！——我已经变成了一个穷光蛋！

"Language, spoken and written, is the most fundamental of all cultural abilities."
文化能力的基本工夫是语言文字。

ail the work I've put in on her for the past few days has just been wasted.
我们前几天的工夫算是白花。

It will take a lot of work to finish the job.
做完那件工作需要费很大的工夫。

Coming back in the time it takes for a meal to ask for more information.
"有顿饭工夫,方回来细问."

…I shall not be able to do the distance either way in less than an hour and a half.
…一来一去，都得一点半钟的工夫。

It’s only six days. Six days is easy.
总共不过六天工夫，六天好打发。

The tailor stitched the split seam in seconds.
裁缝一会儿工夫就把破缝缝好了。

All in all, I don't think it's worth the trouble.
大体上来说，我不认为它值得花工夫。

I've yet to see him dithering and dawdling over anything!
我从没见过他办一件事要花半天工夫！

work是什么意思：
n. 工作；职业；工厂；工作地点；产品；功；操作；作品；工程
v.（使）工作；操作；运作；起作用；使缓慢前进；经营

the works of a clock
钟的活动部件

conscientious work
本着良心做的工作

The work is not advancing.
工作没有进展。

labor是什么意思：
n. 劳动；工作；劳工；英国工党
v. 劳动；费力地前进

It is a scientific labor.
这是一项艰巨的科学工作。

He is satisfied with your labors.
他对你干的活儿很满意。

Genius is nothing But labor and diligence.
天才不过是勤奋而已。

effort是什么意思：
n. 努力，尝试；成就；杰作

It was a vain effort.
这种努力是徒劳无益的。

That effort will be bootless.
那种努力将是无益的。

You must not relax your efforts.
你不可以松懈你的努力。