海洋

shared by worldbank on Jul 18, 2012 in Economy

海洋

shared by worldbank on Jul 18, 2012 in Economy

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海洋覆盖着地球面积的71%。海洋给我们提供食物,维持生计和经济稳定,调节气候,还有许多其他功能。而如今,世界共有的海洋资源处于压力之下,...
Rank: 2316 of 5248 in Economy

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