Be familiar with

Be familiar with

Proficient, Chinese idiom, Pinyin is t ō NGD á ā NLI à n, meaning deep understanding of human relations, dealing with problems skillfully. From the story of heroes and heroines.

The idiom comes from the second chapter of Wenkang's biography of heroes and heroines in Qing Dynasty: "since this man is so proficient, how can he not understand the importance of etiquette?"