Settled populations affected by environmental constraints have to be mobile.
定居人群受到环境制约不得不进行流动。
Growing Numbers of settled populations required new forms of organisation and control.
定居人口的增加，需要新的组织形式和管理形式。
The latter trend may stem from highly mobile populations moving from large cities to the less densely settled interior of the country.
内部化趋势可能源于大量人口从国内大城市向内陆中小城市的流动。
Archaeological and genetic data have long supported a northeast Asia origin for the populations that first settled north and South America.
考古学和遗传性的大量数据，早就表明了最先定居美洲大陆的人类具有东北亚人种的血统。
Archaeological and genetic data have long supported a northeast Asia origin for the populations that first settled north and South America.
考古学和遗传性的大量数据，早就表明了最先定居美洲大陆的人类具有东北亚人种的血统。
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