Shutoff valve
[化] 切断阀; 断流阀; 截止阀; 闸阀
🧩 词语组成解析
n. 关闭器(如阀、开关), 遮断, 停止
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
I would like to send this by registered mail, please.
我想把这封信挂号寄出。
We may be able to help you in some way.
我们也许能在某些方面帮助你。
Mind your own business!
管好你自己的事！