chéng / shì / yīng / dāng / jiā / qiáng / shuǐ / zī / yuán / de / zōng / hé / lì / yòng / jiǎn / shǎo / làng / fèi

城市应当加强水资源的综合利用，减少浪费。

Cities should promote the comprehensive utilization of water resources to reduce waste.