美
['tʌnl]
underground passage
similar underground passage (made by a burrowing animal)
"the tunnel reduced congestion at that intersection"
"burrow through the forest"
A tunnel thirty miles long under the Channel.
出自：Saturday Review
The vein has been attacked by various tunnels.
出自： R. Raymond
Like shouting in a tunnel, and all you hear..is your own voice echoing back.
出自： J. C. Oates
The train whistled..running through a tunnel.
出自： S. Hill
Active burrowers, tunnelling through the mud.
出自： D. Attenborough
Maggots will be found tunneling in the roots.
出自：Garden Answers
A sandy trail tunneled through..mossy trees.
出自： fig.
