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
I always wanted to travel to Europe but I was afraid that language would be a problem.
我总想去欧洲旅游，但我又怕语言是个问题。
One enemy can do more hurt than ten friends can do good.
十个朋友做的好事抵不上一个敌人造成的危害。
Macaroni has been grown in this area for over six hundred years.
通心粉在这个地区已经种植了600多年了。