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交通部最近透露，中国的国道主干线系统将于２０１０年全部建成。北京、上海与所有直辖市、省会、自治区首府等特大城市都将会以高速公路为主的高等级公路相通，中国约有６亿人口将享受由此带来的出行便利。到２０２０年，所有拥有５０万人口以上的大城市将由高等级公路连接形
Ministry of Communications recently disclosed that China’s national trunk road system will be completed in 2010. Beijing, Shanghai and all the municipalities directly under the Central Government, provincial capitals, metropolitan areas such as autonomous regions and capital cities will be highway-based highway connecting the same, about 600 million people in China will enjoy the resulting travel convenience. By 2020, all major cities with more than half a million people will be connected by high-grade highways