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
Let me show you this.
我给你看看这个。
But the market prices are changing frequently.
但是市场价格随时都在变化。
I'm afraid I have to go now.
现在我得走了。