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
Let sleeping dogs lie.
别招惹麻烦。
Please take your time.
请慢慢来。
The doctor said he could do nothing to help him.
医生说他对此无能为力。