Non-return flap valve
[化] 止回阀
🧩 词语组成解析
non
[[nɔn]]
adv. 非, 不
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
I eat there a lot.
我在那 吃过好多次。
There's many a good tune played on an old fiddle.
老当益壮。
You've got a point there.
你说的有道理。