Clack valve
止回阀
🧩 词语组成解析
clack
[[klæk]]
v. 噼啪响\\nn. 噼啪响
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
The professor runs a restaurant on the side.
这个教授的副业是开饭馆。
Paul started with surprise when Jim tapped his shoulder.
当吉姆拍了保罗的肩膀时，保罗吓了一跳。
I'm very well, thank you.And you?
很好，谢谢你。你好吗？