Four electrode valve
[电] 四极阀
🧩 词语组成解析
four
[fɔr]
num. 四;四个;第四;
n. 四的;四个一组之物;
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
What's that, Mr. Carlson?
什么事， Carlson先生？
To deliver milk
送牛奶
Can you believe that I bought a TV for $25?
你能相信吗我买一台电视只花了不起5块钱？