look unperturbed
Self effacing is an idiom. Its pronunciation is y ì Q ì Z ì Ru ò, which means to look natural as usual. It refers to a natural and calm manner.
explain
If you don't change the normal, you'll still be the same. He looks as natural as ever. It refers to a natural and calm manner. It is also called "free spirited".
source
Li Guangchuan, the book of the Han Dynasty: "Guang was defeated by the Xiongnu. There was no one in charge of the officials and scholars, and Guang was in high spirits."
Examples
Shao changjuan's history of Yandian in Qing Dynasty.
usage
It refers to people's free will.
look unperturbed
be highly skilled in military drill - wàn rén zhī dí
one 's methods are more than human - shén jī miào suàn
Chapter eight of right biography - yòu chuán zhī bā zhāng