Productivities

Almost all variations in living standards are explained by differences in countries'productivities.

几乎全部的生活水平的不同都可以由生产率的不同来解释.

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Global warming affects productivities of plants, and then, the structure and evolution of community.

气候变暖影响植物生产力, 进而影响群落的结构和演化.

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