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
Hey, do you work out?
嘿，你锻炼吗？
I must know your opinion.Do you agree with me?
我必须知道你的意见.你同意我吗？
I was doing some exercises on the high-and-low bars. When I landed, I fell forward and hurt myself. Someone was standing too close and I knocked into him and fell over onto my shoulder.
我当时在高低杠上练习。落地时向前摔倒受了伤。有人站的离我太近，我撞在他身上，跌了一跤，肩膀也受了伤。