中国的产出增长是用投资整整一半的GDP来维持的，尽管没有哪个国家可以在相当长的时间里将国民收入的三分之一以上用于投资还能保证生产率。
The country has sustained its output growth by investing fully one-half of GDP, though no country can productively invest more than a third of national income for an extended period.