China has long been a free rider on the ocean highways.

长期以来,中国在大洋公路上搭便车.

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EXAMPLE: Then there is the free rider problem.

例证: 另外就是无本获利的问题.

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Explain what a free rider is and how that concept is related to environmental law.

解释什么是坐享其成并且那个概念怎么与环境法有关.

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