圍城打援 wéi chéng dǎ yuán

DEFINITIONS

  1. to besiege and strike the relief force (idiom); strategy of surrounding a unit to entice the enemy to reinforce, then striking the new troops

CHARACTERS

圍 wéi surround, encircle, corral
城 chéng
HSK 3
castle; city, town; municipality
打 dǎ
HSK 1
strike, hit, beat; fight; attack
援 yuán
HSK 6
aid, assist; lead; cite