Why take the trouble to do that?

何必多此一举?

That is to say, why should we take the trouble to do it?

也就是说我们为什么要费力这样做？

'You don't want to take the trouble to do it, Darcy, that' s why! 'said Colonel Fitzwilliam.

“达西，不过是你不想去找麻烦罢了，这才是原因！”费茨威廉上校说。

In general, if you ignore the amount of iron you take in and do not pay attention to warning signs before iron reserves are gone, you will be in trouble.

一般说来，如果你忽视自己摄入的铁质含量，不在铁质储备失去之前注意警告信号，你会有危险。

We don't take the time to do the little things that, though not difficult or time-consuming themselves, can end up saving enormous amounts of time and trouble.

我们没有花时间做那些虽然不难也不耗费时间但是却能省下大量时间和麻烦的小事情。

Elizabeth: I do not play this instrument so well as I should wish to, but I have always supposed that to be my own fault, because I would not take the trouble of practising.

伊丽莎白：我的琴艺不如我希望的好，但我总认为那是我自己不好，因为我懒得练习。