Anthropologists studying the Hopi people of the southwestern United States often characterize Hopi society between 1680 and 1880 as surprisingly stable, considering that it was a period of diminution in population and pressure from contact with outside groups, factors that might be expected to cause significant changes in Hopi social arrangements.
大侠们谁能把这句话翻译一下? 我很迷茫,为什么一会儿说他们很stable,一会儿却又说a period of diminution?