古代近东地区最早的城邦出现在美索不达米亚平原的南端，该地区位于底格里斯河和幼发拉底河之间，也就是现在的伊拉克境内。
The earliest of the city states of the ancient Near East appeared at the southern end of the Mesopotamian plain, the area between the Tigris and Euphrates rivers in what is now Iraq.
比如，几个世纪以来，尼罗河、底格里斯河和幼发拉底河每年的洪水给下游山谷的居民带来了肥沃的淤泥和水源。
For centuries, the annual floods of the Nile, Tigris, and Euphrates, for example, have brought fertile silts and water to the inhabitants of their lower valleys.
该工程旨在改进农业生产，为底格里斯河和幼发拉底河流域贫困的东南村庄供水、供电。
It aimed to improve agriculture and provide water and electricity to poor south-eastern villages around the Tigris and Euphrates rivers.
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