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
Right.
对。
Why are you so mean? I've never done anything to you.
凶什么凶？ 我又没得罪你。
The first settlers on the plains of America were Native Americans.
美洲平原上的首批定居者是美洲土著人。