a tunnel under sth
under 后接隧道所穿越的障碍物，如河流、山体或建筑，用来说明隧道的位置。
The train disappeared into a tunnel under the mountain.
火车消失在山下的一条隧道里。
洞穴；地洞；隧道状物；隧道；隧道协议；水平巷道；烟道
An underground or underwater passage, especially one for cars or trains, or a passage through or under an obstacle.
地下通道
An underground or underwater passage.
通过或在某物下的通道,通常是地下的(尤其是火车或汽车用)
a passageway through or under something, usually underground (especially one for trains or cars)
穿过障碍的通道
A passage through or under some obstacle.
动物为栖息而挖的洞
a hole made by an animal, usually for shelter
动物洞穴
A hole in the ground made by an animal, a burrow.
协议隧道,用于封装不可直接使用的协议
A wrapper for a protocol that cannot otherwise be used because it is unsupported, blocked, or insecure.
漏斗
A vessel with a broad mouth at one end, a pipe or tube at the other, for conveying liquor, fluids, etc., into casks, bottles, or other vessels; a funnel.
烟道
The opening of a chimney for the passage of smoke; a flue.
水平巷道
A level passage driven across the measures, or at right angles to veins which it is desired to reach; distinguished from the drift, or gangway, which is led along the vein when reached by the tunnel.
类似隧道的东西
Anything that resembles a tunnel.
The train went through a long tunnel under the mountain.
火车穿过了一条很长的山底隧道。
用法提示：tunnel 作名词，指地下的通道，这里用作 went through 的宾语。
AI contextual example
The rabbit disappeared into a small tunnel in the ground.
兔子钻进地里的一条小地洞。
用法提示：tunnel 在这里指动物挖的洞穴，作介词 into 的宾语。
AI contextual example
Drivers should turn on their lights when entering the tunnel.
司机进入隧道时应打开车灯。
用法提示：tunnel 指供车辆通行的地下通道，作 entering 的宾语。
AI contextual example
under 后接隧道所穿越的障碍物，如河流、山体或建筑，用来说明隧道的位置。
The train disappeared into a tunnel under the mountain.
火车消失在山下的一条隧道里。
through 强调从障碍物内部穿透，常与岩石、山体等搭配。
Engineers dug a tunnel through the solid rock.
工程师们挖了一条穿过坚硬岩石的隧道。
leading to 是现在分词短语作后置定语修饰 tunnel，表示隧道通向的方向。
They walked along a narrow tunnel leading to the ancient tomb.
他们沿着一条通往古墓的狭窄隧道走去。
grammar · medium
易错句子Workers built many tunnel under the city last year.
正确表达Workers built many tunnels under the city last year.
tunnel 是可数名词，前面有 many 修饰时必须用复数形式 tunnels。汉语名词本身不随数量变化，学习者容易漏掉复数词尾 -s。
grammar · medium
易错句子The train goes through tunnel under the sea.
正确表达The train goes through a tunnel under the sea.
单数可数名词前必须有冠词或其他限定词，这里首次提到、泛指「一条隧道」，要用不定冠词 a。汉语没有冠词系统，学习者常把 a/an 直接漏掉。
grammar · medium
易错句子The train went across the tunnel.
正确表达The train went through the tunnel.
表示从隧道内部「穿过、贯穿」要用介词 through；across 指从某物表面横穿过去（如 across the road），不能表示在隧道内部穿行。
公路隧道
The road tunnel was closed for repairs.
那条公路隧道因维修而关闭。
挖隧道
The prisoners dug a tunnel to escape.
囚犯们挖了一条隧道逃跑。
隧道入口
We waited at the tunnel entrance.
我们在隧道入口处等候。
隧道塌方
The tunnel collapse trapped several workers.
隧道塌方困住了几名工人。
逃生隧道
The prisoners escaped through an escape tunnel.
囚犯们通过一条逃生隧道逃跑了。
Choose the next layer that will help you use tunnel with more confidence.
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