beyond recall
US /bɪˈjɑːnd rɪˈkɔːl/
UK /bɪˈjɑːnd rɪˈkɔːl/

1.
無法回憶, 不可挽回
impossible to remember or retrieve from memory
:
•
The details of that ancient event are now beyond recall.
那個古老事件的細節現在已經無法回憶。
•
Her childhood memories are mostly beyond recall.
她的童年記憶大多已經無法回憶。