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
It was all worth it.
那完全值得。
Give my best to your family.
代我向你们全家问好。
See you next Friday.
下星期五见。