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
The checkout counters are very busy.
收款台都很忙。
I didn't realize the time had passed so quickly.
我没有认识到时间这样快速过去了。
She never thought of it again,
此后她就再没去想那只瓶子。