The removal of dams remains controversial because of high restoration costs, loss of low-cost electricity, and the loss of water storage facilities.

大坝的拆除仍然存在争议，因为高重建成本，损失低成本电力，以及损失蓄水设施。

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But, Barbier found, a fully functioning mangrove ecosystem would be worth the restoration cost.

Barbier又发现，一个完全发挥机能的红树林生态系统可与修复费用等值。

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The restoration to the castle took a year and cost a lot of money.

修复城堡花了一年时间和大量的钱。

《新英汉大辞典》

The council said the restoration work will cost "millions of pounds", and involves rewiring, replacement of existing heating systems and weatherproofing works.

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It said grants were vital with the cost of expensive heritage restoration projects often falling on small congregations.

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How much the restoration of the new South Ferry station will cost remains an open question.

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