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
What's the tuition for one year of college?
大学一年的学费是多少？
Kill two birds with one stone.
一石双鸟；一箭双雕。
Pumas are large, cat-like animals which are found in America.
美洲狮是一种体形似猫的大动物，产于美洲。