京杭运河是世界历史上最悠久、最长的人工河流。
The Jinghang canal is the longest and oldest artificial river in the world.
公园内最重要的景观焦点应该是一条贯穿整个公园的仿自然人工河流，它不仅有助于改善城市热岛效应而且可以让市民们安全戏水。
The naturalized river is an important aspect of the park that helps reduce the urban heat island effect and is a safe place where people can just step on in.
包括主要由河流、湖泊、和水库组成的地表水必须要通过人工引流才能从一个盆地进入另一个盆地，很多时候能够依赖的技术只有水泵。
Surface water-mostly rivers, lakes and reservoirs-will not flow from one basin into another without artificial diversion, and usually only with pumping.
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