A tunnel thirty miles long under the Channel.
出自:Saturday ReviewThe vein has been attacked by various tunnels.
出自: R. RaymondLike shouting in a tunnel, and all you hear..is your own voice echoing back.
出自: J. C. OatesThe train whistled..running through a tunnel.
出自: S. HillActive burrowers, tunnelling through the mud.
出自: D. AttenboroughMaggots will be found tunneling in the roots.
出自:Garden AnswersA sandy trail tunneled through..mossy trees.
出自: fig.