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
He is a good speaker of English.
他英语说得非常流利。
I don't think that's at all funny.
我觉得那件事一点也不好笑。
During his first year, Chaplin acted in 35 films, many of which he wrote and directed himself.
在第一年里，卓别林演了35部电影，其中的许多电影是他自编自导的。