Words — 1 found
zī zī bù juàn
ㄗ ㄗ ㄅㄨˋ ㄐㄩㄢˋ
  1. Idiom
    1. lit. diligent and never slacking
  2. 2. continuous concentrated effort
  3. 3. assiduous (in study)
  4. Verb
    4. to concentrate