cry over spilled milk

US /kraɪ ˈoʊvər spɪld mɪlk/
UK /kraɪ ˈoʊvər spɪld mɪlk/
"cry over spilled milk" picture
1.

覆水盆に返らず, 済んでしまったことを悔やむ

to be unhappy about something that cannot be changed

:
It's no use crying over spilled milk; we just need to find a solution now.
覆水盆に返らず、今すぐ解決策を見つける必要がある。
She was still crying over spilled milk from last week's mistake.
彼女は先週の失敗についてまだ覆水盆に返らずと嘆いていた。