windfall loss

例句：

1. 1. The company suffered a windfall loss due to the sudden drop in oil prices.
   由于油价的突然下跌，公司遭受了意外损失。
2. 2. He was surprised by the unexpected windfall loss from his investment.
   他的投资意外地获得了一笔意外收益。
3. 3.The government announced that it would compensate for any unforeseen windfall losses during the crisis.
   政府宣布将补偿在危机期间任何意外的损失。