Adventitial sheath
[医] 外膜鞘
🧩 词语组成解析
[医] 外膜的
sheath
[ʃi:θ]
n. 护套;鞘;叶鞘;紧身装;
v. 包，盖;
🗣️ 情景例句
No, thank you. Please tell him to phone me when he comes back.
不了，谢谢。他回来时，请告诉他给我打个电话。
It is my pleasure to introduce the keynote speaker for today.
我很荣幸地介绍今天的主讲人。
I'm talking. You are not talking. You're listening to me .
我在说话。你没在说话。你在听我说话。