鸟巢的英文介绍40至50字,有中文解释,不要太繁琐

Beijing National Stadium also known as the National Stadium,or colloquially as the Bird's Nest,is a stadium in Beijing,China.The stadium was designed for use throughout the 2008 Summer Olympics and Paralympics.Located in the Olympic Green,the $423 million stadium is the world's largest steel structure.The design was awarded to a submission from the Swiss architecture firm Herzog & de Meuron in April 2003,after a bidding process that included 13 final submissions.