fait accompli
noun [ C ] uk/ˌfet ə.kɒmˈpliː/ us/ˌfeɪt ə.kɑːmˈpliː/ faits accomplis /ˌfet ə.kɒmˈpliː/ /ˌfeɪt ə.kɑːmˈpliː/
既成事实
something that has already happened or been done and cannot be changed
The policy change was presented to us as a fait accompli, without consultation or discussion. 未经磋商或讨论，政策上的变化就已成既成事实摆在了我们面前。