For example, to maintain its current population size, Japan would have to accept 350,000 newcomers annually for the next 50 years, which is difficult for a culture that has historically been hostile to immigration. In contrast, the Census Bureau projects that the US population will grow by 49% over the next four decades.
比如，为了维持现有人口规模，日本必须在未来50年中每年接收35万新国民，这对于这个向来对移民持敌视态度的国家来说十分困难。相反，美国人口调查局预计，美国人口将在未来四十年中增加49%。