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
I need a new toothbrush. My old one's worn out.
我需要一支新牙刷。旧的用坏了。
I couldn't help it.
我没办法。
There are two other points to consider.
发传真要考虑另外两点。