Valve cylinder
[化] 阀筒
🧩 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
What's on the menu?
有什么菜？
Burnt child dreads the fire.
一朝被蛇咬，十年怕井绳。
Quite by accident. I moved a few peas and there it was.
很偶然。我挪了几颗青豆就发现了。