What is done can't be undone!

木已成舟！

youdao

What is done cannot be undone, you know.

你知道，覆水难收。

youdao

What is done can't be undone, and I must be patient!

覆水难收，我必须有耐心！

youdao

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

VOA: special.2010.04.05

He said poor supervision had led to "work left undone or done messily".

BBC: Travellers at the Beijing West Railway Station, Jan 2013

"What was done cannot be undone, but we can end the silence, " Clinton said.

CNN: Clinton Apologizes To Tuskegee Experiment Victims

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