Even our deepest tunnels are only around 200 feet below the ground.

即使是最深的隧道也大约只有 200 英尺深。

But at 287 metres down, you can drive through the deepest road tunnel in the world in Norway.

但是在287米深的地方，在挪威，你可以穿过世界上最深的公路隧道。

The deepest section of the tunnel, which is 75 meters underground, is the deepest underground tunnel in Beijing.

隧道最深的一段在地下 75 米，是北京最深的地下隧道。

Beyond that at 240 meters, you can ride through the deepest railway tunnel in the world that connects the Japanese islands of Honshu and Hokkaido.

继续深入至240米，你可以穿过世界上最深的铁路隧道——连接日本本州岛和北海道。