为防洪，供水，娱乐而设计的托克岛大坝，不能解决建坝支持者所指出的那些长期存在的和不断出现的问题。
Tocks Island dam, designed for flood control, water supply, and recreation, cannot solve the long-standing and growing problems that dam supporters pointed to.
当上游有水库，其防洪标准低于下游水库时，下游水库必须考虑上游水库溃坝洪水的影响。
When there exists reservoir upstream, whose standard for flood control is lower then that in downriver, the dam-break flood upstream must be considered.
相对于修坝来防洪水，保护水源地的植被，通过植被来调节水资源的时空分布成本更低。
It is cheaper to protect vegetation and use that vegetation to regulate water flow than it is to build a dam to prevent flooding.
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