“已成定局，木已成舟，既成事实”cut-and-dried或者cut and dr...

bca

As the prosecutor in the case pointed out to the jury, this was not a cut-and-dried case.


ˌcut and 'dried
◙adj
1. a situation, decision, result etc that is cut and dried cannot now be changed
• 已成定局的; 不可改变的:
»I don't think the plan is as cut and dried as people think .
我并不认为这项计划像大家所想的那样不可更改。


cut and dried
ˌcut and 'dried adjective [not usually before noun]
   decided in a way that cannot be changed or argued about
   已成定局；不容更改:
   The inquiry is by no means cut and dried.
   调查之事并未说死。


cut-and-dried
/ˌkʌtn̩ˈdraıd/ ( also US   cut-and-dry) /ˌkʌtn̩ˈdraı/ adj   [more ~; most ~]
  : having a clear and definite quality that does not allow doubt or that cannot be changed
   The situation wasn't as cut-and-dried as we had thought.
   a cut-and-dried example
   a cut-and-dried decision