process spent water

例句：

1. 1. The factory processes a large amount of wastewater daily.
   这家工厂每天处理大量的废水。
2. 2. The city has invested in new technology to process spent water more efficiently.
   该市投资新技术以更高效地处理废水。
3. 3. The company's wastewater treatment plant is responsible for processing the city's spent water.
   该公司的废水处理厂负责处理城市的废水。