前仰後合 qián yǎng hòu hé

DEFINITIONS

  1. to sway to and fro
  2. to rock back and forth

CHARACTERS

前 qián
HSK 1
in front, forward; preceding
仰 yǎng
HSK 6
raise the head to look; look up to, rely on, admire
後 hòu behind, rear, after; descendents
合 hé
HSK 4
combine, unite, join; gather