Sinus sigmoideus
<拉>乙状窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
🗣️ 情景例句
It's good! It's this Sunday at 7.
好极了。宴会再本周日7点。
I'm afraid I have some rather bad news for you.
我恐怕有些很坏的消息要告诉你。
If they are not brought to the surface soon they may lose their lives.
如果不把他们尽快救到地面上来，他们就有可能丧生。