Reversing valve
[化] 回动阀
🧩 词语组成解析
a. 回动的\\n[化] 换向
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
You made a tough decision.
你做了一个困难的决定。
What shall I give him for his Easter?
我要给他什么东西作为复活节礼物？
You've just missed it!
你们刚好错过了那班车。