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
She couldn't get over her shyness.
她无法克服羞怯。
Riches have wings.
财富难保。
Then make the bed.
再把床整理一下。