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
She's got him under her thumb.
她把他给管住了。
Nothing so necessary for travellers as languages.
旅行者最需要的是几种语言。
I apologize for being so angry with you.
我为跟你发火向你道歉。