Sinus sigmoideus
<拉>乙状窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
who really needs to be wearing a tuxedo,
真正需要穿燕尾服的人，
Health and cheerfulness mutually beget each other.
健康愉快，相生相成。
Yes, that is absolutely right.
啊，对的，是应该这样。