To start with, it forced the population to abandon the nomad's life and became sedentary, to develop methods of storage and, often, systems of irrigation.
首先，它会迫使人们放弃游牧生活定居下来，因而使人们开发存储的方法，往往也会开发灌溉系统。
2
In both these systems, the overwhelming majority of the population is equal and powerless.
在这两个系统中，占绝大多数的人口都是平等而软弱无力的。
3
Again, in the absence of well-functioning health systems, we are unlikely to get even the most basic population data on morbidity and mortality.