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
No pain, no gain.
只有付出，才有收获！（不劳则无获！）
Knowledge will not be aquired without pain and application.
不花力气，不下功夫是得不到知识的。
In our game we also have eleven players in a team, but our ball is like this.
比赛中，我们一个队也有11名队员，不过我们的球是像这样的！