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 I think he believes
而我认为他相信
He said he would rather not tell his age.
他说他不愿告诉年龄。
Well, just a little please.
好吧，就来一些吧。