Reduction valve
[化] 减压阀
🧩 词语组成解析
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
Great. I believe you must care for his educations.
太好了。我相信你肯定很关心他的教育吧。
Rivers need a spring.
大河要有源头。
Is anything the matter?
怎么回事呀？