Piston valve
[机] 活塞阀
🧩 词语组成解析
piston
['pɪstən]
n. <机>活塞;
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
Unbelievable. I've got to read her new book as soon as it comes out.
真了不起。她的新书一出版我就得读一读。
Idle people (folks) have the most labour (take the most pains).
懒人做工作，越懒越费力。
I expect to be there this evening.
我打算今天晚上到那儿去。