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
Wait till Philip comes home and sees our progress.
等着瞧Philip回来看到我们进展时的反应吧
He who fears to suffer, suffers from fear.
怕吃苦头的反因怕而吃苦头。
Be careful. It's dangerous. You're too high.
小心。危险！你上得太高了！