unforeseen loss

例句：

1. 1. The company suffered a huge unforeseen loss due to the sudden market downturn.
   由于市场的突然下跌，公司遭受了巨大的未预见损失。
2. 2.The unexpected loss of revenue has forced the company to reevaluate its business strategy.
   收入的意外损失迫使公司重新评估其业务战略。
3. 3. The unforeseen loss of their investment in the new technology was a major setback for the team.
   团队对新技术的投资意外损失是一个重大挫折。