不宣而戰

bùxuān'érzhàn

open hostilities without declaring war; start an undeclared war

* * *

bù xuān ér zhàn

v. open hostilities without declaring war, start an undeclared war

* * *

bu4 xuan1 er2 zhan4

open hostilities without declaring war, start an undeclared war

* * *

不宣而戰|不宣而战 [bù xuān ér zhàn] ► open hostilities without declaring war ► start an undeclared war