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
But right now, I'm kind of short of cash.
但现在，我手头很紧。
I've already read that book.
我已经读了那本书。
You'd better hurry and buy a ticket then. It'll be very popular.
那你最好赶紧买张票吧！他的音乐会是很受欢迎的。