To minimize the disturbance of social water cycle on natural water cycle is the sole choice to maintain the continuing utilization of urban water resource and sustainable development of human being.
减少水的社会循环对水的自然循环的干扰，是维持城市水资源的持续利用的唯一选择。
Currently, the resource utilization in urban park is under extensive managment, and its utilization of water resource is unreasonable.
当前，城市公园绿地对资源的利用还处于粗放管理的状态，对水资源的浪费很严重。
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