例句與造句

1. The company owns and operates regulated water utility and wastewater systems as well as operates water and wastewater systems under contract on behalf of municipal and private clients in New Jersey and Delaware.
2. This technical knowledge, combined with the experience of managing and operating water and wastewater systems has allowed NRWA training, assistance and  common sense solutions that are practical at the local level.
3. It's difficult to find operating water and wastewater systems in a sentence. 用operating water and wastewater systems造句挺難的