里勾外连

拼音：lǐ gōu wài lián

详细解释

lǐ gōu wài lián ㄌㄧˇ ㄍㄡㄨㄞˋ ㄌㄧㄢˊ

里勾外连　

◎ 里勾外连 lǐgōu-wàilián

[act from inside in coordination with forces attacking from outside] 内部和外部互相连通一气

这起银行盗窃案有里勾外连的背景