The Aswan Dam, for example stopped the Nile flooding but deprived Egypt of the fertile silt that floods left - all in return for a giant reservoir of disease which is now so full of silt that it barely generates electricity.

• 比如阿斯旺大坝，阻挡了尼罗河的洪水，但却使埃及失去了洪水所能留下来的肥沃的淤泥，所有的这一切都是为了换得一个巨型的但却（给人们带来）疾病丛生的水库，这个水库现在充满了那么多的淤泥，基本上它已无法发电。