The difficulty of a problem was defined in terms of how long it took to complete.

问题的难易度是以解决这个问题所花时间的长短而定的。

《牛津词典》

How long did it take to complete?

它花费了多长时间来完成？

youdao

Adjust the frequency and detail of RUNSTATS depending on how fast it takes to complete the run for the table.

根据RUNSTATS在该表上完成运行的速度，调整RUNSTATS的频率和细节。

youdao

Besides the actual performance, they look at how long it takes the soldiers to complete their tasks, since time can make the difference between survival or death for those who are lucky enough to be alive after the nuclear blast.

VOA: standard.2010.07.21

So let me write that down, it's how much memory do I need to complete a computation.

让我把它写下来,当我计算的时候。

麻省理工公开课 - 计算机科学及编程导论课程节选

When we talk about space, what we usually refer to is, how much computer memory does it take to complete a computation of a particular size?

我们经常指的是，当我们计算，一个特定大小的问题的时候,要占用计算机的多少内存？

麻省理工公开课 - 计算机科学及编程导论课程节选

Figuring out how much money is needed for a company to meet its goals requires a sobering view of how quickly it can complete the research-and-development phase and find customers who are willing to give its technology a try.

FORBES: A Guide To Building A Successful Green Tech Company

How many paid tax preparers does it take to complete the 135 million individual tax returns the Internal Revenue Service receives a year?

FORBES: Who Does Your Taxes?

The road test: Before you can post a question, you must complete a short tutorial on how to do it properly, meaning that the questions and answers are of use to a wider audience than just yourself.

BBC: Tech test drive: Quora