Venae pericardiacae
[医] 心包静脉
🧩 词语组成解析
vena的复数
🗣️ 情景例句
Yes, sir.
是的， 先生。
You are still thinking about a Ph.D., aren't you?
你还是想学成博士，是吗？
he answered me, but he spoke neither slowly nor clearly.
他回答了，但他讲得既不慢也不清楚。