tube
- n. 管；电子管；隧道；电视机
- vt. 使成管状；把…装管；用管输送
- vi. 乘地铁；不及格
英英释意
- 1. conduit consisting of a long hollow object (usually cylindrical) used to hold and conduct objects or liquids or gases
- 2. electronic device consisting of a system of electrodes arranged in an evacuated glass or metal envelope
- 3. a hollow cylindrical shape
- 4. (anatomy) any hollow cylindrical body structure
- 5. electric underground railway