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
We really appreciate it.
我们实在很感激。
To snore
打鼾
How could she possibly ace it when she keeps cutting class all the time?
她老是缺课，怎么能考100分？