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
We had a great time, Mom.
我们玩得非常开心，妈妈。
Yes, I am. And you must be Mr. Takeshita.
是的，我就是，你一定是竹下先生吧。
They located the right chimney by tapping at the walls and listening for the man's cries.
他们通过叫击烟囱倾叫声而确定传出声音的那个烟囱。