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
What was the weather like yesterday?
昨天的天气怎么样？
I'm sorry. I was just playing football with my friends.
对不起，我只是和朋友去踢了足球。
This result merely confirms earlier American and British studies:
结果仅仅确认了美国人和英国人早期的研究：