aggression
/əˈgreʃn; ə`ɡrɛʃən/ n
1 [C, U] (instance of) unprovoked attacking or hostility by one country against another 侵略
an act of open aggression 公然的侵略行动.
2 [U] (psychology 心) hostile feelings or behaviour 敌对的情绪或行为; 攻击行动
She was always full of aggression as a child. 她自幼心中就充满了敌对情绪.