nonrecurring gains and loss

例句：

1. 1.The nonrecurring event is a rare occurrence that doesn't happen again.
   这个不重复的事件是罕见的，不会再发生。
2. 2.The nonrecurring error was a mistake that occurred only once and cannot be replicated.
   这个不重复的错误是一次错误，无法复制。
3. 3. The team's performance was nonrecurring, as they had never faced such challenges before.
   团队的表现是不重复的，因为他们以前从未遇到过这样的挑战。