Sigmoid valves
[医] 半月瓣
🧩 词语组成解析
a. S字形的, 乙状结肠的, C字形的\\nn. 乙状结肠
n. 阀门；真空管；瓣膜（valve的复数）
🗣️ 情景例句
Just a minute. Here's your receipt.
请等一下。这是你的收据。
You're a very beautiful woman. You should try this one. I'm sure you'll be more beautiful than ever.
你是位美人儿。且试一试这个，肯定会让你变得更美丽的。
Was all the material in that case destroyed?
箱里的东西都毁了吗？