Emergency valve
[化] 事故阀
🧩 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
What's your mother's occupation?
你妈妈的职业是什么？
A good beginning makes a good ending.
善始者必善其终。
I think it's green.
我想是绿色的。