1
- a long, hollow cylinder of metal, plastic, glass, etc. for holding or transporting something, chiefly liquids or gases（金属、塑料、玻璃等材料制的）管, 管子：
a plastic tube is connected to the tap and the beer is ready to be pulled.
笼头上接了根塑料管子, 这样啤酒就可以随时汲取出来了。
1.1
- the inner tube of a bicycle tyre自行车内胎。
1.2
- mass noun material in such a cylindrical form; tubing管料; 管形材料：
the firm manufactures steel tube for a wide variety of applications.
这家工厂生产满足多种需求的钢管。
2
- a thing in the form of or resembling such a cylinder, in particular管状物, 尤指：
2.1
- a flexible metal or plastic container sealed at one end and having a screw cap at the other, for holding a semi-liquid substance ready for use（一头密封, 一头有螺旋盖, 装半流质的）软金属管, 塑料管：
a tube of toothpaste.
一管牙膏。
2.2
- a rigid cylindrical container圆柱形硬管：
a tube of Smarties.
一瓶聪明豆（糖果）。
2.3
- Austral. informal a can of beer〈澳, 非正式〉一听啤酒：
a tube of lager.
一听贮陈啤酒。
2.4
- usu. with adj. or noun modifier Anatomy, Zoology, & Botany a hollow cylindrical organ or structure in an animal body or in a plant (e.g. a Eustachian tube, a sieve tube)【剖, 动, 植】管状器官, 管（如咽鼓管、筛管）。
2.5
tubes
informal a woman's Fallopian tubes〈非正式〉输卵管：women with blocked tubes.
输卵管阻塞的妇女。
2.6
- a woman's close-fitting garment, typically without darts or other tailoring and made from a single piece of knitted or elasticated fabric紧身女衣：
as modifier stretchy tube skirts.弹性紧身筒裙。
2.7
- (in surfing) the hollow curve under the crest of a breaking wave（冲浪用语）（散浪头下的）空心浪。
2.8
- informal a cigarette〈非正式〉香烟。
3
- Brit. informal (the tube) the underground railway system in London〈英, 非正式〉伦敦地铁：
it wasn't far from where he lived, just a stop further on the tube.
那离他住的地方不远, 多坐一站地铁就到了。
3.1
- a train running on this system地铁列车：
I caught the tube home.
我搭地铁回家了。
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电子管, 真空管（尤指真空或充气的玻璃管, 内含两个电极, 其间可有电流通过）。
4.1
- a cathode ray tube, especially in a television set阴极射线管, 电视显像管。
4.2
the tube
N. Amer. informal television〈北美, 非正式〉电视：watching the tube in a country bar.
在一家乡村酒吧看电视。
4.3
- N. Amer. a thermionic valve〈北美〉热离子管。
with obj.
1
- usu. as adj. tubed provide with a tube or tubes给…装上管子：
in combination a giant eight-tubed hookah.巨型八管水烟筒。
2
- informal fit (a person or animal) with a tube to assist breathing, especially after a laryngotomy〈非正式〉（给做过喉剖开术的人或动物）插管（以助呼吸）。
3
- with adverbial convey in a tube用管道运输。
4
tube it
Brit. informal travel on the Tube〈英, 非正式〉乘地铁：we tubed it back to Queensway
我们坐地铁回到女王道
no obj. I tubed to St Pancras.我乘地铁去的圣潘克拉斯。
短语
go down the tube（或tubes）
- informal be completely lost or wasted; fail utterly〈非正式〉一败涂地, 完全失败：
the country is going slowly and surely down the tubes.
这个国家正缓慢而不可挽回地走向绝境。
派生词
tubeless
adjectivetube-like
adjective词源
mid 17th cent.: from French tube or Latin tubus.