wéi​chéng​dǎ​yuán

to besiege and strike the relief force

围城打援 圍城打援 wéi​chéng​dǎ​yuán
to besiege and strike the relief force
(idiom) A military strategy of surrounding a city or strongpoint to draw out enemy reinforcements, then ambushing those reinforcements as they arrive.

Frequency

Written text
0.029 per million

Sources

Frequency data
BCC Corpus (BLCU)