同样，也没有一本教材花费大的篇幅来讨论如何判断您是否得到了正确的需求。

None of the books devotes much space to discussing how to tell if you have the right requirements, either.

youdao

最好的设备花费大，但这种开支很值得。

The best equipment is costly but is well worth the outlay.

《牛津词典》

不要花费一大段篇幅来说明你的约翰叔叔是如何试图解决这个问题却失败了。

Don't spend a paragraph on how your uncle John tried to fix the problem and couldn't.

youdao

What we really want to worry about is, as the size of the problem gets larger, how does this thing grow? How does the cost go up?

随着问题规模的变大，解决问题花费的代价是怎么增长的,因此我们将会主要地讲讲？

麻省理工公开课 - 计算机科学及编程导论课程节选