useless reserves

例句：

1. 1. The company has been running on empty reserves for the past few months.
   这家公司在过去几个月里一直用空储备运营。
2. 2. The government has declared a national emergency due to the shortage of useless reserves.
   由于无用储备的短缺，政府宣布了全国紧急状态。
3. 3. The manager decided to use the unused reserves to fund the new project.
   经理决定使用未使用的储备来资助新项目。