Venous valves
[医] 静脉瓣
🧩 词语组成解析
a. 静脉的, 在静脉中的, 有脉的\\n[医] 静脉的
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
This!
这个！
Who is calling, please?
请问你是谁？
As the floods had put the telephone out of order, we could not find out how they were managing.
由于洪水造成了电话中断，我们无法了解他们情况。