Sinus venosus
静脉窦
🧩 词语组成解析
n. 窦, 静脉窦, 凹陷处
[医]静脉的
🗣️ 情景例句
My name is Li.
我姓李。
Fortune knocks once at least at every man's door.
人人都有鸿运高照之日。
I know! smiled Lucy. They have steps, and they begin with L!
“我知道！”露茜笑着说，“它们有阶梯，并且这个单词是以L开头的！”