Nonreturn valve
[机] 止回阀
🧩 词语组成解析
不返回的, 止逆的, 止回的
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
She is at the top of her class.
她在班里名列前茅。
Why don't we go to the office now?
为何我们现在不去办公室呢？
There's no need to be worried. We're both fine.
没有必要嘛。我们两个都挺好。