奥运会要求举办城市要拥有一个主体育场。夏季奥运会至少容纳7万人,除了满足奥运会竞赛的需要外,还要有艺术美感及文化风格。主体育场是历届奥运会主办国投人资金最多、花费心血最大的项目,也是奥运会最重要的场馆。一般开幕式和闭幕式,以及田径比赛和部分足球比赛都在这里进行 Olympic Games require the host city to have a main stadium. The Summer Olympics will accommodate at least 70,000 people. In addition to meeting the needs of the Olympic Games, there must be artistic beauty and cultural style. The main stadium is sponsored by the previous host countries the most funds, spend the most effort in the project, but also the most important venue for the Olympic Games. General opening and closing ceremonies, as well as track and field events and some football matches, are held here