In the last few years, Silicon Valley has strengthened its case as the new center of economic gravity in the United States.
但过去几年，硅谷强化了它作为美国经济重力新中心的理由。
The center of gravity for economic thought in the United States has long been found along the two miles in Cambridge, Mass. , that run between Harvard University and M. I. T.
一直以来，美国经济学思想的中心都位于马萨诸塞州坎布里奇的一段两英里长的地带，它的两端分别是哈佛大学和麻省理工学院。
The center of gravity for economic thought in the United States has long been found along the two miles in Cambridge, Mass. , that run between Harvard University and M. I. T.
一直以来，美国经济学思想的中心都位于马萨诸塞州坎布里奇的一段两英里长的地带，它的两端分别是哈佛大学和麻省理工学院。
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