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
And, Mrs. Stewart, are you working?
嗯， Stewart太太， 你有工作吗？
She was so stunned, that she couldn't speak.
她惊愕得说不出话来。
No, it isn't. It's a jeep.
那不是。那是一辆吉普车。