best （5）次优定价法 ）次优定价法(Second-best Pricing)
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second best pricing 价法
second-best pricing
次优定价
以上为机器翻译结果，长、整句建议使用 人工翻译 。
Still, if politics or technology rules out congestion-based road-pricing, a second-best case can be made for raising the petrol tax instead.
ECONOMIST: How much should petrol be taxed?
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