Endocardium
n. 心内膜\\n[医] 心内膜
🗣️ 情景例句
Ah, you are an early bird then!
你原来是早起的人。
I had a shot of penicillin.
我打了一针青霉素。
The officers got out and the prisoner stood to attention and saluted as they passed.
军官们下了车，战俘立正站好，并在他们从他面前经过时敬了礼。