求翻译：西汉前期,国家统一，农业、手工业的发展，促进商业的繁荣，出现了一些大都会--长安.洛阳.赋役政策和耕织经济形式进一步促进商业繁荣.汉武帝的时期国富兵强，开通陆上丝绸之路和海上丝绸之路，与此同时,对外贸易起步也巩固了商业的地位,沿商路兴起一系列城镇.由此可见,西汉的商业在一段时期内是相当繁荣的!领先于世界.是什么意思？

Western Han Dynasty, the development of national unity, agriculture, handicrafts, to promote the prosperity of the business, the Metropolitan - Chang'an. Luoyang. Taxes and corvee policy and economic form of farming organizations to further promote the commercial prosperity. The period of Emperor Ha

Early Western Han and the unification of the country, agriculture and the handicraft industry of the development, promotion of commercial prosperity, and there have been some cosmopolitan - Chang'an, Luoyang, pointed out that farming organizations reserve policy and economic forms to promote further

Western Han dynasty early, national unified, agricultural, and handicrafts of development, promote commercial of prosperity, appears has some large will--Changa