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
He is with someone right now. Would you hold?
他现在在会客。你可以稍等吗？
Oh! I'm sorry. I wish you could stay.
哦，真遗憾，要是你能多呆一会儿该多好。
Speculations about is nature have been going on for literally thousands of years,
人们对睡眠作用的种种猜测，确实有数千年之久。