Valve clack
[化] 阀瓣
🧩 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;
clack
[[klæk]]
v. 噼啪响\\nn. 噼啪响
🗣️ 情景例句
That's why I'm reading my paper and having my coffee
这就是今天早上为什么我看报纸喝咖啡
Our guarantee covers maintenance for both parts and labor.
我们的保证是包括更换零件和免费保养。
On arriving in England, they were taken to the Crystal Palace by train.
一到英国，火车就把他们送到了水晶宫。