我费了好大的劲说服她离开。

I had considerable difficulty (in) persuading her to leave.

《牛津词典》

我把它们弄掉了，费了好大的劲才找到。

Though I dropped them and had some trouble finding them.

youdao

祖父费了好大的劲才把这个地方修葺好。

With a great deal of trouble, the grandfather had fitted up this place.

youdao

To attend these lectures in sections-- more on that in a moment; to submit 9 problem sets, take two quizzes and ultimately design a final project.

每节课都要来参加-,这个一会儿再解释，做完九套习题，参加两次测验，最后设计好期末的大作业。

哈佛公开课 - 计算机科学课程节选

and get a great job, and buy a house, and meet a wonderful woman,

找一份好工作，买一套大房子，娶一个特别棒的妻子，

Must 实战 - SpeakingMax英语口语达人

So that's pretty good. Let's try a slightly larger example.

所以很好，让我们试试,数字大一些的例子。

麻省理工公开课 - 计算机科学及编程导论课程节选