成天

chéngtiān
  1. (coll.) all day long
  2. all the time

CEDICT

colloquial

Entry Composition

1 成 chéng
  1. to succeed
  2. to finish
  3. to complete
  4. to accomplish
  5. to become
  6. to turn into
  7. to be all right
  8. OK!
  9. one tenth
2 天 tiān
  1. day
  2. sky
  3. heaven