n.[C]

1. 管；筒
   He slipped the telescope into a steel tube.

   他将望远镜收进一根钢管内。

2. （装牙膏等的）软管[（+of）]
   I need a tube of tooth paste.

   我需要一管牙膏。

3. （轮胎的）内胎
4. （动，植物的）管状器官
5. 电子管，真空管
6. 【英】（有时大写）地下铁（道）[the S]
   She goes to work by tube.

   她乘地铁上班。

7. 【美】【俚】电视，电视机[the S]
8. 管状隧道
9. 【澳】【口】【俚】一罐（啤酒）[（+of）]
10. 【俚】香烟

vt.

1. 给……装上管子；把……弄成管状
2. 用管输送
3. 【美】【俚】未通过（考试）
   She tubed every test last week.

   她上星期测验门门不及格。

vi.

1. 坐内胎顺流而下

n.

1. a long, hollow cylinder used for conveying or holding liquids or gases.
   ▸a long flexible metal or plastic container sealed at one end and with a cap at the other.
   ▸material forming tubes.
2. Anatomy,  Zoology,  & Botany  a hollow cylindrical organ or structure in an animal or plant.
   ▸ (tubes) informal a woman's Fallopian tubes.
3. (the Tube) Brit. trademark the underground railway system in London.
   ▸a train running on this system.
4. a sealed container, typically of glass and either evacuated or filled with gas, containing two electrodes between which an electric current can be made to flow.
   ▸a cathode ray tube, especially in a television set.
   ▸N. Amer. a thermionic valve.
5. (the tube) N. Amer. informal television.
6. (in surfing) the hollow curve under the crest of a breaking wave.
7. informal a cigarette.
8. Austral. informal a can of beer.

v.

1. [usu. as adj. tubed] provide with a tube or tubes.
2. convey in a tube.