unexpended appropriation

例句：

1. 1.The funds were unexpended when the project was completed.
   项目完成后，这些资金是未使用的。
2. 2.The company had invested heavily in research and development but had not yet seen any unexpended returns.
   公司已经投入大量资金进行研发，但尚未看到任何未使用的收益。
3. 3. The budget for the new project is fully unexpended, so there will be no need to cut corners.
   新项目的预算已全部使用完毕，因此无需削减成本。