Vacuum valve
[化] 真空阀
🧩 词语组成解析
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
Too bad kids can't vote.
可惜小孩不能投票。
Speak of angels and you will hear their wings.
说到曹操，曹操就到。
You must always return your library book on time!
你必须按时归还图书馆的书！