Non-return valve
[化] 止逆阀; 单向阀
🏥 医学释义
单向活门，单向阀
🧩 词语组成解析
non
[[nɔn]]
adv. 非, 不
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
How long has he held office?
他已任职多长时间了？
So he is gradually getting used to thinking in English.
因此他正养成用英语思维的习惯。
I want to have a look at what's on this weekend. Let me see now.
我想看看这周末上演什么。让我看看。