時而

时而
shíér
occasionally; from time to time

CEDICT

Entry Composition

1 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period
2 而 ér
  1. and
  2. as well as
  3. and so
  4. but (not)
  5. yet (not)
  6. (indicates causal relation)
  7. (indicates change of state)
  8. (indicates contrast)