Sinus sigmoideus
<拉>乙状窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
I'd like to live in the city,
我也喜欢住在城市，
If he had only had enough money,he would have bought that house.
如果他仅仅有了足够的钱，他就会买那房子。
Everybody will be watching anxiously as the new buildings go up.
大家都将急切地注视着新建筑的建成。