Sigmoid cavity
[医] 乙状窝(指尺骨的棒月切迹及桡骨切迹或桡骨的尺骨切迹)
🧩 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
🗣️ 情景例句
I must prepare my lessons.
我必须准备工课。
He could always come up with a reason for them to linger another month.
他总能想出个理由来让他们再耽误上一个月。
If you learn even a little English, you will find it usedful after you leave school.
假如你哪怕只是学一点英语，毕业后，也会发现它是有用的。