Valve tube
[电] 阀管
🧩 词语组成解析
valve
[vælv]
n. 阀;真空管;（管乐器的）活栓;（心脏的）瓣膜;
vt. 装阀于;以活门调节;
🗣️ 情景例句
Nothing. Absolutely nothing.
没有啊。什么事也没有。
An ox is taken by the horns,and the man by the tongue.
牛因角被执，人因舌陷身。
How are you getting there?
你怎么样去？