the Severn Tunnel
/ðə ˌsevn ˈtʌnl/
/ðə ˌsevərn ˈtʌnl/
- a rail tunnel under the river Severn between south-west England and south Wales. It was built near Bristol between 1873 and 1886 and is 4.35 miles/7 kilometres long, the longest tunnel in Britain.
Severn隧道：英格兰西南部和威尔士南部之间的Severn河下方的铁路隧道。它建于1873年至1886年之间的布里斯托尔附近，长4.35英里/ 7公里，是英国最长的隧道。