In 1957,American economists found out that between 1909 and 1949,in the growth rates among the non-agricultural sector,skills contributed 87.5 per cent towards growth,while labor and capital contributed a mere 12.5 per cent.是什么意思_In 1957,American economists found out that between 1909 and 1949,in the growth rates among the non-agricultural sector,skills contributed 87.5 per cent towards growth,while labor and capital contributed a mere 12.5 per cent.在线翻译_英语_读音_用法_例句