今天（2010年1月21日）是上海世博会倒计时100天的日子。2002年12月3日，上海以88%的得票率获得2010年世界博览会主办权，这是走过159年历史、无数次点燃人类文明智慧火花的世博会，首次在发展中国家举办。截至目前，已有192个国家、50个国际组织、18个企业馆，以及国内31个省区市和港澳台地区确认参展上海世博会，国际参展方数量已创造世博会的历史纪录。对整个中国来说，上海世博会将是中国在过去三十年间快速发展的一个见证，也是国家实力的标志；而对上海来说，则是扩展经济发展，加强地区经济融合，促进城市发展的绝好时机。 

作为首次在发展中国家举办的综合性世界博览会，上海世博会在整个筹备过程中持续受到各方密切关注。目前，世博会各项筹备工作已进入最后冲刺阶段。在世博会开幕倒计时100天到来之际，有许多亮点值得回顾，也有诸多悬念让人们期待。大家一起来关注吧！

100-day countdown to Shanghai World Expo

With only 100 days to go before the 2010 Shanghai World Expo opens, most pavilions at the Expo site have been completed or are nearly finished.

For the second time in less than two years, China will once-again open itself up to the world in a major way. Today marks the 100 day countdown to the opening of the World Expo in Shanghai. According to Expo officials, some 18 million tickets for the event, which runs from May 1st to October 31st, have already been sold. Some 192 countries, along with 50 different organizations, have already said they'll be taking part later this year. In putting the plan for the Expo together, officials estimated that Shanghai would see some 70 million visitors over the course of the event. As such, municipal authorities in Shanghai have been preparing for the influx, adding dozens of new public transit routes and other infrastructure projects to handle the estimated 400,000 additional people a day traveling through the city. And even though the final preparations are still taking place, one still has to wonder what sort of impact the World Expo will have on Shanghai, not only during the event itself, but on the city after the party is over.