Endocardium
n. 心内膜\\n[医] 心内膜
🗣️ 情景例句
I have to sign copies of my book for a lot of people
我还必须为许多人在我的书上签名
Don't bury your head in the sand.
不要逃避现实。
He is acting an old man.
他正扮演一个老人。