奥巴马需要回顾那个从根本上变革的新政，其创造了数以百万记的的工作机会，来建设基础设施如桥梁、参与田纳西流域的开发和管理以及修建道路和隧道。尽管这些基础设施现在已经破烂不堪并充满危险。
Obama will have to look back to the transformative New Deal, which created millions of jobs building infrastructure-bridges, TVA, roads, tunnels-infrastructure now crumbling and often dangerous.
因此在一些国家，为了引进农业投入品(如化肥)和出口农产品，你必须利用几年时间修建所需的道路和港口。
In some countries it will take years just to build the roads and ports needed to bring in agricultural inputs such as fertilizer and to export farm products.
应用推荐