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
Can I take it off? I'm hot!
我可以脱掉吗？我好热！
I still need three more credits in Psych; maybe I'll take Ed Psych this term.
心理学我还需要三个学分。或许我在本学期修教育心理学。
'It doesn't matter,' I said.'I'll get off here.'
“没关系，”我说，“我就在这儿下吧。”