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'll give them your regards.
我会向他们转达你的问候。
Take these books home with you tonight.
今晚你带这些书回家。
How was the exam, Richard?
考试考得怎样，理查德？