Hierarchization
[医]等级化
🗣️ 情景例句
Yes, a pediatrician.
是的， 小儿科医师。
A little child is the sweetest and purest thing in the world.
幼儿是世界上最可爱和最纯洁的。
This has not been easy because I own over a thousand books.
但这并不容易，因为我有1，000多本书。