That is why Obama called for an increase in US public investment in three areas: education, science and technology, and infrastructure (including broadband Internet, fast rail, and clean energy). He spelled out a vision of future growth in which public and private investment would be complementary, mutually supportive pillars.
奥巴马也因此呼吁美国加大对以下三大领域的公共投资： 教育、科学技术和基础设施（包括宽带网络、快速轨道交通和清洁能源）。 他详细描绘了一幅未来公共和私人投资相互补充、相互支持的经济发展愿景。