这种严峻的现实不只发生在乡村的几百万农民身上，它也降临到世界上许多大都市的居民头上，他们巨大的人口规模让他们不得不开采地下水以满足饮用水需求。
This is serious for millions of people not just in the country but also in many of the world's biggest cities, which often depend on aquifers for their drinking water.
这座城市变成了一个巨大且熙熙攘攘的大都市。
它们正处在从乡村到大都市转变的初步过渡阶段，但是，不可否认的是，这是一个巨大的飞跃。
They serve as an initial step in the transition between the countryside and the metropolis; undeniably the most drastic leap.
它们正处在从乡村到大都市转变的初步过渡阶段，但是，不可否认的是，这是一个巨大的飞跃。
They serve as an initial step in the transition between the countryside and the metropolis; undeniably the most drastic leap.
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