時空

时空
shíkōng
  1. time and place
  2. world of a particular locale and era
  3. (physics) space-time

CEDICT

physics

Entry Composition

1 時 shí
  1. o'clock
  2. time
  3. when
  4. hour
  5. season
  6. period
2 空 kōng
  1. empty
  2. air
  3. sky
  4. in vain