磨礪

磨砺
mólì
  1. to sharpen on grindstone
  2. to improve oneself by practice

CEDICT

to go through the mill; to steel oneself; to harden oneself; to discipline oneself

Wiktionary

磨物使其銳利。引申為磨鍊。

重編國語辭典

Entry Composition

1 磨 mó
  1. to rub
  2. to grind
  3. to polish
  4. to sharpen
  5. to wear down
  6. to die out
  7. to waste time
  8. to pester
  9. to insist
2 礪 lì
  1. grind
  2. sandstone