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
Do you want to stick it out for the whole weekend?
难道你想在此地耗掉整个周末？
Is that a car?
那是一辆小汽车吗？
Are you a teacher?
你是教师吗？