北京市地铁运营有限公司
- 网络Beijing Metro Operation Co., Ltd;Beijing Mass Transit Railway Operation Corporation Limited
北京市地铁运营有限公司-
北京市地铁运营有限公司（BeijingMassTransitRailwayOperationCorp.Ltd）的这个亏损数字超过了奥运会主场馆鸟巢的建设成本。鸟巢已成为北京的一大标志性建筑，造价人民币31.3亿元。
That loss for the Beijing Mass Transit Railway Operation Corp. , Ltd is more than what it cost to build the Olympic Bird Nest stadium , now a major landmark in Beijing , which cost 3.13 billion yuan to build .