切磋琢磨

Etymology
From the , poem 55 (《詩經·衞風·淇奧》):



Idiom

 * 1)  to carve and polish (bones, horns, ivory and jade)
 * 2)  to learn by exchanging ideas and experiences; friendly competition; improvement by learning from others

Etymology
From.

Noun

 * 1) applying oneself and studying hard to cultivate oneself
 * 2) friendly competition, improving oneself by learning from others

Verb

 * 1) apply oneself and study hard to improve oneself
 * 2) try to improve by learning from others