destructive to both sides in a conflict (冲突双方)两败俱伤的 the region's history of savage internecine warfare. 该地区野蛮相互残杀的战争史。 ■of or relating to conflict within a group or organization 内部斗争的
语源
mid 17th cent. (in the sense 'deadly, characterized by great slaughter'): from Latin internecinus, based on inter- among + necare 'to kill'