此项北美大草原地区示范工程一开始似乎是个好主意。
The rice farmers' foe The Grand Prairie Area Demonstration Project seemed, at first, a fine idea.
我在这里发现，食草哺乳动物的种群密度与生物量，堪与状况最好的东非大草原地区相比。
I determined that densities and biomass of herbivorous mammals in Nagarahole were comparable to some of the best East African Savannah areas.
在西非，大象即可生存在森林中，也可生存在稀树大草原地区，但它们的分类学属性仍未确定。
In West Africa, elephants live in both forest and savanna areas, but their taxonomic status remains uncertain.
农田在许多方面的改善与灌溉相关，但是北美洲和印度西部大草原和平原地区的一些雨育农田及牧场也得到改善。
Many gains in cropland are associated with irrigation, but there are also swaths of improvement in rain-fed cropland and pastures in the prairies and plains of North America and western India.
农田在许多方面的改善与灌溉相关，但是北美洲和印度西部大草原和平原地区的一些雨育农田及牧场也得到改善。
Many gains in cropland are associated with irrigation, but there are also swaths of improvement in rain-fed cropland and pastures in the prairies and plains of North America and western India.
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