Construction of the Olympic Stadium roof has started.
奥林匹克体育场屋顶建造工作已经开工。
A 30m-long steel section of the roof has been lift into place, taking the height of the venue to almost 37m above the ground level where the spectators will enter the stadium in 2012.
一个30米长的屋顶钢筋组成部分已经安装落位,这使得场馆高出地面37米。而这37米的空间就是2012年观众入场的地方。
