缺少宾语.
fight作动词时,无论 vt/vi 主动语态后面都要跟东西的呀,原因如下：
fight做不及物动词 vi. （fight for/against/over/about）
1.打仗;搏斗;打架;奋斗
You have to fight for your rights.
你必须为你的权利而奋斗.
England and France fought against Russia in the Crimean War.
在克里米亚战争中,英、法两国与俄国作战.
2.争吵[(+over/about)]
He and his wife are always fighting over trifling matters.
他和他妻子总是为琐事争吵.
fight做及物动词 vt. ( fight + norbe fought)
1.与...作战;与...斗争
They fought their oppressors with all kinds of weapons.
他们用各种武器对抗压迫他们的人.
2.打(仗);进行(战斗,决斗等)
The battle was fought in the mountains.
这一仗是在山里打的.
3.反对
They fought the bill fiercely.
他们激烈反对这项议案.