Valve cover
[化] 阀套
🧩 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
the school poster for the play this year.
今年学校话剧的海报。
A chance may come up soon.
一个机会可能会很快出现。
Oh, very well. Then there is nothing to worry about. I apologize. (Hands him the note.)
哦，那太好了，没什么可犯愁的了。我向你道歉。（把钞票递给他）