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
I don't know what you are driving at.
我不知道你到底想说什么。
Where's a tax-free shop?
免税店在哪儿？
Where are you from?
你是哪里人？