Mercier's valves
[医] 梅尔西埃氏瓣(输尿管襞)
🧩 词语组成解析
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
I need your help badly. My car can't start. Can you send somebody over?
我急需你们的帮助。我的车启动不了，能派人来修吗？
He seems very serious, but in fact he has a delightful sense of humor.
他看上去很严肃，其实很诙谐。
It's not you, is it?
这不是你，对吗？