Translation

• spilt water is difficult to retrieve (idiom)
• it's no use crying over spilt milk
• what's done is done and can't be reversed
• the damage is done
• once divorced, there's no reuniting

Synonyms

• 一锤定音, 决定, 定, 定局, 尘埃落定, 已然, 成议, 操胜券, 木已成舟, 注定, 生米煮成熟饭, 稳操胜券

Examples

• 覆水难收。
  What is done cannot be undone.