Sigmoid sinus
乙状窦
🧩 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
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
They also ask questions like Where do you come from? and Where do you live?.
他们也会问“你从哪儿来？”，和“你住在哪儿？”这样的问题。
Which do you prefer, fishing or mountain-climbing?
钓鱼和登山，你更喜欢哪一个？
Jim, how long have you been at this school?
吉姆，你到这学校有多么时间了？