天旋地转 tiān xuán dì zhuàn

DEFINITIONS

  1. the sky spins, the earth goes round (idiom); giddy with one's head spinning
  2. fig. huge changes in the world

CHARACTERS

天 tiān sky, heaven; god, celestial
旋 xuán revolve, move in orbit; return
地 dì earth; soil, ground; region
转 zhuàn shift, move, turn