美国有200万住房短缺，对住房负担能力构成挑战，因此有必要增加住房建设。 2M US home shortage challenges affordability, necessitating increased construction.

美国200万的住房短缺因负担能力问题对美国人的住房拥有梦构成挑战，需要大幅增加新房建设。 2M home shortage in the US challenges the American dream of homeownership due to affordability issues and requires a significant increase in new home construction. 尽管自 1978 年以来人口有所增长，但现有房屋销售量仍与 1978 年的水平相当。 Despite population growth since 1978, existing home sales remain comparable to 1978 levels. 220 万套住房短缺、劳动力成本高、环境法规加强、土地价格上涨以及移民涌入等因素导致住房市场难以承受。 A 2.2M home shortage and factors like high labor costs, increased environmental regulations, elevated land prices, and immigration influx contribute to the housing market's unaffordability.