请商务英语达人帮我翻译一下下面的短文!!

Human Capital economists said the United States Kennan (P. B. Kenen) and others put forward by the use of investment in human resources to explain the difference between U.S. foreign trade commodity structure is consistent with Joseph - Russia's principle theory.In their view, labor is a different quality, different quality of this performance difference in labor efficiency, the main difference is determined by the degree of skilled labor, skilled labor and the degree of high and low, and workers depend on training, education and Other related expenses, a decision that is intellectual investment spending, the high efficiency of the skilled and skilled labor, in the final analysis, is the result of an investment, is a product of capital spending. Kennan believed that international trade of goods needed for the production of capital should include physical capital and intangible capital, that is human capital. Human capital is the main means for a country's vocational education and technical training in such areas as capital.Human capital investment, improve labor skills and expertise to promote the improvement of labor productivity. Because the United States has invested more in human capital, and more skilled labor force, U.S. exports of products containing more skilled labor. If the skilled labor income than simple labor as part of the capital and physical capital with the sum, after this deal, the United States continues to be capital-intensive export products.He is in line with this conclusion - Russia's principle, so as to Leontief Mystery reversed, and this is the so-called human capital said. But this interpretation of the difficulty lies in the fact that concrete is difficult to measure the true value of human capital, not everyone agreed. But Kennan will Leontief Kissin and the deepening of points, said of skilled labor played a supplementary explanation.