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
To teach a fish how to swim.
孔子面前读诗书，班门弄斧。
The restaurant was full, so we decided to go somewhere else.
那餐厅客满了，我们决定到其他的地方去。
Oh, doctor. He seems terribly ill. Are you sure it's nothing serious?
噢，医生。他似乎病得很厉害。你肯定不是什么大病？