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
It's a great opportunity for you, Harry.
这对你是个大好机会， Harry。
See you again.
再见。
So she's been at this school since September?
这么说来，她自9月份才在这所学校学习？