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
You're growing so fast, Michelle.
长得太快了， Michelle。
We'd like to hear what you say concerning the matter of packing.
我们很想听听你们在包装方面有什么意见。
Oh! Do you have to?
噢！必须收拾吗？