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
Please have two window seats placed aside for us.
请为我们保留两个靠窗口的位子。
Will you be here at ten o'clock tomorrow?
请你明天十点到这里，行吗？
When Dimitri came in from the fields, his wife told him what had happened.
迪米特里从地里回来，妻子把情况跟他一说，