tube

柯林斯词典

1. N-COUNT A tube is a long hollow object that is usually round, like a pipe. 管子
He is fed by a tube that enters his nose. 他通过一根插入鼻子的管子进食。
2. N-COUNT A tube of something such as paste is a long, thin container which you squeeze in order to force the paste out. (装膏状物体的) 管子
I went out today and bought a tube of toothpaste. 我今天出去买了一管牙膏。
3. N-COUNT Some long, thin, hollow parts in your body are referred to as tubes. (人体内的) 管状器官
The lungs are in fact constructed of thousands of tiny tubes. 肺其实是由数千个细小管状器官构成的。
4. N-COUNT You can refer to the television as the tube. 电视机[美国英语] [非正式]
The only baseball he saw was on the tube. 他只在电视上看过棒球比赛。
5. N-SING The tube is the underground railway system in London. 伦敦地铁[英国英语]

The vacuum inside the tube caused it to implode when the external air pressure was increased .
The surgeon makes a small incision into which a tube is inserted .
The tube which carries the laser is introduced into the abdomen through a small cut in the skin .
The prisoners who were being force-fed had tubes rammed down their throats .
The operation involves putting a small tube into your heart .