unaccounted-for water

例句：

1. 1. The rainwatercollected from the roof is not included in the total water usage.
   从屋顶收集的雨水不包括在总用水量中。
2. 2.The company has been using a lot of unaccounted-for water in their production processes.
   该公司在其生产过程中使用了大量未计入的水量。
3. 3.To reduce water waste, the government has implemented stricter regulations on the unaccounted-for water usage.
   为了减少水浪费，政府对未计入的水量使用实施了更严格的规定。