Clappet (valve)
[化] 止回阀
🧩 词语组成解析
[建] 止回阀
🗣️ 情景例句
That's just what I was thinking.
我正是那么想的。
My goodness! A snake!
天呀！有蛇！
What kind of quality control do you have?
你们用什么办法来控制质量呢？