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
Oh, Grandpa will be so pleased that you're wearing them.
噢 ，戴了它， 祖父一定会非常高兴。
He is playing on the merry-go-round in the park.
他正在公园里骑旋木马。
Glancing at her scornfully, he told her that the dress was sold.
轻蔑地看了她一眼后，便告诉她那件衣服已经卖出去了。