Ball's valves
[医] 鲍尔氏瓣, 莫尔加尼氏瓣(肛瓣)
🧩 词语组成解析
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
That should do.
那应该可以了。
What do you do in your spare time?
闲暇时，你干些什么？
It was kind of exciting.
有点剌激。