吉布森说，建立一个区域的冷却系统，所有的管道和泵站并不便宜，但从长远来看，它可以节省钱，特别是当现有的地下基础设施可以被利用的话。
Gibson says it's not cheap to build all of the pipes and pumps for a district cooling system, but it saves money in the long run, especially if existing underground infrastructure can be used.
对这座城市的改建会花费很多，但从长远看，这会给我们省钱。
The changes in the city will cost quite a lot, but they will save us money in the long run.
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