Valve pin
[计] 真空管脚\\n[化] 阀销
🧩 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;
pin
[pin]
n. 钉;别针，扣针，饰针;大头针;没价值的东西;
vt. 压住;（用钉等）钉住，钉住，别住，扣住;用障壁等)围住，关住（俚语）抓住;[军]牵制;
adj. 针的;钉的;销的;大头针的;
🗣️ 情景例句
We met at the hospital.
我们在医院里见过。
Almost everyone is aware of environmental problems in America.
在美国，几乎人人都注意到环境问题。
There is so much variety that you never have to make do with second best.
物品种繁多，从来不必用二等品来凑合。