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
Have fun and be careful.
好好玩，但小心点哦。
He gave her his word that he would never be late again.
他向她保证，绝不再迟到。
I sometimes stay in bed until lunchtime.
有时我要一直躺到吃午饭的时候。