(1)管，筒(hollow pipe of metal，glass，rubber or other material，used to carry liquids)[C]：a rubber/glass～ 橡胶管/玻璃管;an inner～ 轮胎的内胎;test-～s(实验室用的)试管;〖同〗pipe，container;

(2)软管(small，flexible container sealed at one end and having a screw cap at the other)[C][N(of)]：buy a～of toothpaste/tomato puree 买一管牙膏/一筒番茄酱;～s of glue/mayonnaise 几管胶水/几筒蛋黄酱;squeeze glue from/out of a～从软管中挤出胶水;〖同〗pipe，container;

(3)管状器官(organ like a hollow pipe in the body of a person or an animal)[C]：bronchial/Eustachian/Fallopian～s 支气/耳咽/输卵管;

(4)(伦敦)地下铁道(underground railway esp in London)[C，the～;U(by～)](=the underground) (infml)：go to work/travel on the～乘地铁去上班/旅游;go to work/travel by～乘地铁上班/旅游;take a/the～to Heathrow terminal 乘地铁去希思罗机场站;～trains/tickets 地铁车/地铁车票;〖同〗underground;

→′tubeless adj 无内胎的;′tubing n 一段管子;管材;′tubular adj 管状(式)的;由管子组成的