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
I get the picture.
我知道是怎么回事了。
They called us just as we were having dinner.
当我们正在吃晚饭，他们就打电话给了我们。
I'm afraid I have to go now.
现在我得走了。