tunnels
A tunnel is a long passage which has been made under the ground, usually through a hill or under the sea.
Boston drivers love the tunnel.
波士顿的司机们喜欢那条隧道。
tunnels , tunnelling , tunnelled
To tunnel somewhere means to make a tunnel there.
The thieves tunnelled under all the security devices.
小偷们在所有的那些安全装置下面都挖了地道。