Clappet valve
[建] 止回阀
🧩 词语组成解析
[建] 止回阀
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
Sam, would you come in, please?
Sam，请进来一下， 好吗？
To jump for joy
雀跃
What's your name, please?
请问你听什么名字？