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
Mrs. Greenberg is on the phone.
Greenberg太太打电话来。
We're willing to accept your plan.
我们愿意接受你的计划。
How many would you like to order?
您要订多少？