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
Hobbies are supposed to be relaxing.
业余爱好应该是令人放松的。
Music is the eye of the ear.
音乐是耳朵的眼睛。
'We're going back now,' said the conductor.
“我们现在要返回去，”售票员说。