Don't leave any little things undone.

不要遣漏任何小事情未做。

youdao

In the end it never gets done. If we leave things undone, we will eventually worry.

到头来，事情总是没做完，当我们有事没做完的话，我们心里会感到忐忑不安。

youdao

If we leave things undone, we will eventually worry. This will then cause unnecessary tress.

我们若没把事情做完，终究还是会操心，而这样会造成不必要的的压力。

youdao

He says the poet shows a married couple suffering from things done and undone.

VOA: special.2010.04.05

Is he going to be presenting these issues, these things left undone, as second-term issues, reasons why he needs to be reelected?

WHITEHOUSE: Press Briefing

So I think this President aims high, and I think that there will -- there are absolutely things that remain undone that need to be done that he will call on all of us to work together to get done in this address and beyond.

WHITEHOUSE: Press Briefing