请问：开弓没有回头箭 怎样翻译成英文？谢谢！

there is no turning back of an arrow once it's shot.

An arrow of no return
我是根据"a river of no return"来翻译

The die is cast.
It is no use crying over spilt milk.

A shot arrow will not come back.

Open the bow didn't turn head arrows