tunnel

/ˈtənəl/

a passageway through or under something, usually underground (especially one for trains or cars)

中文释义：隧道；地道

The Channel Tunnel connects England and France, allowing trains to travel underwater.

英吉利海峡隧道连接了英国和法国，使火车能够在水下行驶。

Miners dug a long tunnel through the mountain to reach the coal seam.

矿工们挖了一条穿过山体的长隧道以到达煤层。