Invagination
n. 入鞘, 凹入, 反折, 反折处, 凹入部分, 肠套叠\\n[医] 折入, 凹入, 内陷, 套迭
🏥 医学释义
凹入，折入，套叠
🗣️ 情景例句
Keeping busy. Yourself?
一直很忙，你呢？
He has majored in biology.
他专供生物学。
There is hope so long as he is with us.
只要他在就有希望。