Sinus sigmoideus
<拉>乙状窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
Would you like some coffee?
要不要来点咖啡？
I'm afraid you will fail.
我怕你会失败。
as long as these distinctions between ourselves and the primitive,
只要我们同原始人，我们同野蛮人，