it is no use crying over spilt milk。牛奶打翻了,哭了也没用。What is done can't be undone.事到如今,无法改变。Spilt water can't be gathered up。泼出去的水,就收不回来了。(这句是直译,实际还是用上面两个比较好)
你好!覆水难收Spilled water cannot be gathered up.; Water poured on the ground cannot be recovered.;When water's spilt, you can never retrieve it.; What's done cannot be undone.; It is no use crying over spilt milk;