前俯後仰 qián fǔ hòu yǎng

DEFINITIONS

  1. to rock one's body backward and forward
  2. to be convulsed (with laughter etc)

CHARACTERS

前 qián
HSK 1
in front, forward; preceding
俯 fǔ
HSK 6
bow down, face down, look down
後 hòu behind, rear, after; descendents
仰 yǎng
HSK 6
raise the head to look; look up to, rely on, admire