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