The standard highways and substandard roads have statistically significant and positive effects on growth and poverty reduction, and the former has much more impact than...
具有不同质量的等级公路和等外路对经济增长和减缓贫困均具有统计上的显著影响，而且等级公路比等外路的作用更为显著。
Many residents in poorer countries live in substandard housing without access to reliable drinking water, roads and basic services.
较贫穷国家的很多居民居住在不合标准的房子里，没有可靠的饮用水、道路和基本服务。
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