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
I just called to tell you
我打电话是想告诉你
Mr. Smith is a politician.He's running for election as governor.
史密斯先生是竞选州长的一名政治家。
The students walked through the gates with Uncle Wang.
学生们跟随王大叔走进大门。