后拥前驱
hòu​yōng​qián​qū

crowded before and behind

  1. 后 後 hòu locativenoun
    behind
    (bound form) back; rear; behind; in the direction of one's back
  2. 拥 擁 yōng adjective
    to crowd
    to gather around; to swarm; to throng; to surround
  3. 前 qián locativenoun
    front
    (bound form) front; forward; ahead; facing direction. Use 前边 qián​bian or 前面 qián​miàn for the standalone noun.
  4. 驱 驅 qū verbnoun
    to drive
    (bound form) to drive a horse or vehicle; to urge on or spur forward