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1. Oxford Dictionary

   tunnel

   • IPA[ˈtʌnl]

   英式

   • n.
     an artificial underground passage, especially one built through a hill or under a building, road, or river；an underground passage dug by a burrowing animal.
   • v.
     dig or force a passage underground or through something；(of a particle) pass through a potential barrier.

   • verb: tunnel, 3rd person present: tunnels, gerund or present participle: tunnelling, past tense: tunnelled, past participle: tunnelled

   • noun: tunnel, plural noun: tunnels

2. • 釋義
   • 相關詞

   n.

   名詞

   • 1. an artificial underground passage, especially one built through a hill or under a building, road, or river a road tunnel through the Pyrenees the Mersey tunnel
   • ▪ an underground passage dug by a burrowing animal.
   • ▪ a passage in a sports stadium by which players enter or leave the field he jogged off the field and into the tunnel
   • 2. short for wind tunnel
   • 3. a long, half-cylindrical enclosure used to protect plants, made of clear plastic stretched over hoops cover plants in rows with a cloche tunnel

   v.

   動詞

   • 1. dig or force a passage underground or through something he tunnelled under the fence the insect tunnels its way out of the plant
   • 2. (of a particle) pass through a potential barrier.

   scanning tunnelling microscope

   • n.
     a high-resolution microscope using neither light nor an electron beam, but with an ultra-fine ...

   Oxford Dictionary

   tunnel vision

   • n.
     defective sight in which objects cannot be properly seen if not close to the center of the ...

   Oxford American Dictionary

   wind tunnel

   • n.
     a tunnel-like apparatus for producing an airstream of known velocity past models of aircraft, ...

   Oxford American Dictionary

   tunnel vision

   • n.
     defective sight in which objects cannot be properly seen if not close to the centre of the ...

   Oxford Dictionary

   wind tunnel

   • n.
     a tunnel-like apparatus for producing an airstream of known velocity past models of aircraft, ...

   Oxford Dictionary

   tunnel kiln

   • n.
     an industrial kiln in which ceramic items being fired are carried on trucks along a ...

   Oxford American Dictionary

   tunnel kiln

   • n.
     an industrial kiln in which ceramic items being fired are carried on trucks along a ...

   Oxford Dictionary

   tunnel diode

   • n.
     a two-terminal semiconductor diode using tunnelling electrons to perform high-speed switching ...

   Oxford Dictionary

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3. • 更多解釋

   tunnel

   • IPA[ˈtən(ə)l]

   美式

   • n.
     an artificial underground passage, especially one built through a hill or under a building, ...
   • v.
     dig or force a passage underground or through something: he tunneled under the fence the insect tunnels its way out of the plant

   Oxford American Dictionary