Meaning: Tunnels help us travel through mountains.
Choice of Words: Tunnels are underground passages constructed to bypass obstacles like mountains. The verb "pass" indicates movement through the tunnel.
Alternative Expressions
Tunnels go through mountains.
Meaning: This sentence also describes how tunnels go through mountains. It means that tunnels are built to allow people or vehicles to travel through mountains instead of going over them.
Choice of Words: A tunnel is a passage or opening that goes through a mountain or other obstacle. Go means to move or travel somewhere. Through means to pass from one side of something to the other. Mountains are large, natural elevations of the Earth's surface.
Tunnels run below mountains.
Meaning: This sentence describes how tunnels go under mountains. It means that tunnels are built to allow people or vehicles to travel below mountains instead of going over them.
Choice of Words: A tunnel is a passage or opening that goes through a mountain or other obstacle. Run means to move or extend in a particular direction. Below means beneath or under something. Mountains are large, natural elevations of the Earth's surface.