Valve diagram
[机] 阀动图
🧩 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
Think globally, act locally.
放眼全球， 从自身做起。
Is it direct train?
这是直达车吗？
I'm sorry, I don't know. You'd better ask that policeman.
对不起，我不知道。你最好问问那位警察。