多年来，关于谁应该支付巴黎圣母院的修复费用一直存在争议。

There has been an argument over the years as to who should pay for the restoration of Notre Dame Cathedral.

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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。

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

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而各级损坏的修复费用，将以占结构新建成本的比例，即损失比来计算。

The repair expenses of all of the levels will be calculated as a percentage of the cost of the new bridge.

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