tunnel

verb

force a way through
無理に進む
move through by or as by digging
採掘によって動く、または、掘ることによって
- burrow through the forest
  森を突き破って掘り進む

noun

a passageway through or under something, usually underground (especially one for trains or cars)
何かを通り抜けて、あるいはその下を通る道で通常は地下にあるもの（特に列車や車用）
- the tunnel reduced congestion at that intersection
  トンネルはその交差点の混雑を緩和した
a hole made by an animal, usually for shelter
動物が隠れるために地面に掘った穴

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