Valve actuation
[机] 阀动
🧩 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;
n. 开动, 激励\\n[医] 激动, 感动
🗣️ 情景例句
You're very lucky to have a caring family.
你很幸运有一个温馨的家庭。
So soon? Why don't you stay a little longer?
这么早就走了？为什么不呆一会呢？
While John Gilbert was in hospital, he asked his doctor to tell him whether his operation had been successful,
当约翰。吉尔伯特住院的时候，他问医生他的手术是否成功，