By contrast, growth in export volumes in Sub-Saharan Africa averaged only 2 percent per year, in part because world trade of the products they export grew at half the rate of growth of world trade.
与此相反，撒哈拉以南非洲地区的出口额增长每年平均仅有2%，部分原因是他们所出口的产品的世界贸易额增长速度只有整个世界贸易额增长速度的一半。
That's in stark contrast to other areas of the world, such as Latin America, the Caribbean and Sub-Saharan Africa, which use only about 2 percent of available water in their regions.
这与其它地区形成了鲜明的对比，如拉丁美洲、加勒比地区和南撒哈拉非洲地区。在这些地区，只有大约2%的可用水得到了利用。
By contrast, Sub Saharan Africa has lagged in many areas, including school enrollments, infant and child mortality, and maternal mortality.
与此相反，撒哈拉以南非洲地区在许多方面都很滞后，包括入学率、婴幼儿死亡率和孕产妇死亡率。
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