Return valve
[化] 回路阀
🧩 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
And you didn't have a chance to eat.
而且你什么也没有吃。
Please turn the light off when you leave.
离去时请随手关灯。
After they moved the bag away, the girls let the traffic go again.
他们搬走那袋米之后，女孩们解除了交通管制。