irredeemable currency

例句：

1. 1. The damage to the city was irredeemable.
   对城市的破坏是无法挽回的。
2. 2. He had made a mistake that was irredeemable.
   他犯了一个无法挽回的错误。
3. 3. The situation was irredeemable and she knew it.
   情况无法挽回，她知道这一点。