美国的其他优势是它拥有全球100所顶尖高校中的30所，拥有一个勇于冒险的企业家文化，并且美国公司要时刻面对严酷的市场竞争。
Other factors in America’s favor include 30 of the top 100 universities in the world, a risk-taking, entrepreneurial culture, and its companies’ heavy exposure to market forces.