tube

• 指长而中空的圆柱形物体，用于输送液体、气体或其他物质，也可用于结构用途。

A noun referring to a long, hollow cylinder used for conveying fluids, gases, or other substances, or for structural purposes.

1. Cylindrical containerA2formal

   A long, hollow cylinder used for holding or transporting liquids, gases, or other substances.

   管

   • She squeezed the last bit of toothpaste out of the tube.
   • The plumber replaced the old copper tube with a new one.
   • The laboratory uses glass tubes for experiments.

   同义词conduitcylinderducthosepipe

2. Underground railwayA2informalbritish

   A system of electric trains that run underground in tunnels, especially in London.

   地铁

   • I take the tube to work every morning.
   • The tube is the fastest way to get across London.
   • We got lost trying to find the tube station.

   同义词metrosubwayunderground

3. A2informalamerican

   An informal term for a television set.

   电视机

   • What's on the tube tonight?
   • He spends too much time watching the tube.
   • Turn off the tube and do your homework.

   同义词boob tubeboxidiot boxtelevisiontelly

4. Anatomical passageB2formalmedical

   A hollow cylindrical structure in the body, such as a blood vessel or bronchial tube.

   管

   • The doctor examined the fallopian tubes for blockages.
   • Air travels through the bronchial tubes to the lungs.
   • The Eustachian tube connects the middle ear to the throat.

   同义词canalconduitductpassagetracttubulevessel

• 动词，指乘坐充气圈、冲浪板或类似浮具在水上滑行或漂流；也指通过管道输送某物。

A verb meaning to ride or travel on a tube, such as a surfboard or inner tube, or to convey something through a tube.

1. To ride a wave inside a hollow tubeB2informal

   To surf inside the hollow part of a wave, often considered an advanced surfing technique.

   冲浪管浪

   • He managed to tube the massive wave at Pipeline.
   • She spent the afternoon tubing waves at the beach.
   • Only experienced surfers can tube these dangerous waves.

   同义词barrel

2. To travel by underground railwayB1informalbritish

   To travel using the London Underground or similar subway system.

   乘地铁

   • We tubed from Oxford Circus to King's Cross.
   • I usually tube to work to avoid traffic.
   • They tubed across the city to see the show.

3. To enclose in a tubeC1formal

   To place or pack something into a cylindrical container.

   装入管中

   • The technician tubed the samples for transport.
   • They tubed the documents to protect them from damage.
   • The factory tubes the product before shipping.

   同义词encapsulateencaseenclosepackage