北京市发展和改革委员会公布，去年总计有17.4亿人次乘坐北京地铁。
Last year , a total of 1.74 billion passengers took the subway in Beijing , according to the Beijing Municipal Commission of Reform and Development .
北京市发展和改革委员会北京市发展和改革委员会北京市发展和改革委员会