n.地下通道，地道，隧道，(动物的)洞穴通道
v.开凿隧道，挖地道

原形：tunnel第三人称单数：tunnels复数：tunnels过去式：tunnelled过去分词：tunnelled现在分词：tunnelling

Down the tunnel，we saw someone hide in the dark.
沿着隧道，我们发现有人藏在黑暗中。
The workers had to tunnel through the montain.
工人们需要在山中中开凿隧道。
They tunnelled out of a maximum security jail.
他们挖地道逃离了戒备十分森严的监狱。
The train entered the tunnel, disappearing from view.
火车进入了隧道，从视线中消失。
They dug a secret tunnel between the two buildings.
他们在两栋建筑之间挖了一条秘密隧道。
The car emerged from the tunnel into bright sunlight.
汽车从隧道里出来，进入了明亮的阳光下。
The tunnel is narrow and winding, so drive with caution.
隧道狭窄且弯曲，所以请小心驾驶。
The construction of the tunnel took three years to complete.
这条隧道的建设耗时三年才完成。
The cyclists rode through the tunnel, their headlights piercing the darkness.
自行车手们骑过隧道，他们的头灯在黑暗中闪烁。
A ventilation system keeps fresh air circulating in the tunnel.
通风系统保持隧道内的空气流通。
The children discovered an old tunnel beneath the castle ruins.
孩子们在城堡废墟下发现了一条旧隧道。
The tunnel connects the city's two main railway stations.
这条隧道连接了该市两个主要的火车站。
During World War II, a secret escape tunnel was built under the prison.
在二战期间，监狱下方建了一条秘密的逃生隧道。