Sigmoid fossae
[医] 乙状窝(乳突的S字形沟)
🧩 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
pl. 窝, 凹\\n[医] 窝, 凹
🗣️ 情景例句
Mary, I'm glad you called me.
Mary，很高兴你给我打电话。
The leftover food began to smell bad.
剩饭开始发臭了。
Fishermen and sailors sometimes claim to have seen monsters in the sea.
渔夫和水手们有时声称自己看到过海里的妖怪。