Valve cover
[化] 阀套
🧩 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 do you do for a living?
你以什么为生？
I'm going to but two gallons.
我要买两加仑。
This idyllic pastoral scene is only part of the picture.
但这种田园诗般的乡村风光仅仅是一个侧面。