此外，还将增开一趟夜间动卧高铁D312次列车，它以前只是作为上海站至北京南站春运时的临时列车，以后则将开始常规运行。
Another bullet train with sleeping cars , D312 , which ran from Shanghai Railway Station to Beijing South Railway Station temporarily during the Spring Festival holiday , will also start regular operation later .
卧铁