相互残杀

例句：

1. 1. The two rivals fought each other to the death in a battle.
   这两个对手在战斗中互相厮杀至死。
2. 2. The children were fighting over a toy, causing a scene.
   孩子们为了一个玩具而争吵，场面一片混乱。
3. 3. The rival companies competed fiercely for market share.
   这些竞争对手为了市场份额展开了激烈的竞争。