The reuse of the treated water and rainfall should be investigated much more.
The reuse of the treated water and rainfall should be investigated much more.
关于再生水和雨水的回收利用还有待于更深入的研究。
The reuse of the treated water and rainfall should be investigated much more.
关于再生水和雨水的回收利用还有待于更深入的研究。