努力

nǔlì
  1. to make an effort; to try hard; to strive
  2. hard-working; conscientious

CEDICT

Entry Composition

1 努 nǔ
  1. to exert
  2. to strive
2 力 lì
  1. power
  2. force
  3. strength
  4. ability
  5. strenuously