认真

認真
rènzhēn
  1. conscientious
  2. earnest
  3. serious
  4. to take seriously
  5. to take to heart

CEDICT

Entry Composition

1 认 rèn
  1. to recognize
  2. to know
  3. to admit
2 真 zhēn
  1. really
  2. truly
  3. indeed
  4. real
  5. true
  6. genuine