Selector valve
[化] 换向阀
🧩 词语组成解析
selector
[si'lektə]
n. 选择者，选择器;
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
You have to cook dinner for the entire family.
你今晚得替全家做晚餐呢。
I was born in a little town not far from here.
我出生在离这儿不远的小城市里。
Old tunes are sweetest and old friends are surest.
老调最甜美，老友最可靠。