tube

underground, subway, tube

名词 tube:

1. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
   同义词：tubing
2. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
   同义词：vacuum tube, thermionic vacuum tube, thermionic tube, electron tube, thermionic valve
3. a hollow cylindrical shape
   同义词：pipe
4. (anatomy) any hollow cylindrical body structure
   同义词：tube-shaped structure
5. an electric railway operating below the surface of the ground (usually in a city)
   同义词：metro, underground, subway system, subway

动词 tube:

1. provide with a tube or insert a tube into
2. convey in a tube
3. ride or float on an inflated tube
4. place or enclose in a tube

1. Suck on the tube to draw up the water.
   用管子把水吸上来。
2. This tube is flexible but tough.
   这管子柔软但很坚固。
3. Out of the electronic tube has come one particularly tough little war baby.
   从电子管中产生出一门格外强劲而短暂的战时工业。
4. She bought a tube of toothpaste.
   她买了一管牙膏。
5. I go to work on the tube.
   我经常乘地铁去上班。
6. Our television tube has broken.
   我们的电视机显像管坏了。