Flap valve
[化] 片状阀; 瓣阀
🧩 词语组成解析
flap
[flæp]
n. 扁平物;[航] 襟翼;拍打，拍打声;〈口〉不安，恐慌;
v. 上下或左右移动、摆动;轻拍;振翅而飞;
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 right. We've earned it.
你说得对，我们有这样做的权利。
He's been behind bars for almost 30 years.
他坐了将近30年牢。
But wouldn't you like to spend an extra day or two here?
你们不愿意在北京多待一天吗？