这条全长57公里(35英里)的连拱隧道名叫圣哥达基线隧道,位于瑞士阿尔卑斯山山脚下,是一条连接南北欧的高速铁路隧道。
The 57km ( 35-mile ) twin-bore Gotthard base tunnel will provide a high-speed rail link under the Swiss Alps between northern and southern Europe .