fight against
与…作斗争〔争吵〕; 反对…
They were fighting against the enemy.
他们在和敌人作战.
fight for
为…而战斗〔竞争〕
They fought for their country.
他们为祖国而战斗.
fight with
用(某种武器)与(某人)交战; 用(某种方式、手段)反对(某人)
Now,we fight with guns.
现在,我们用枪打仗.
与…争斗
They had to fight with a force twice their number.
他们不得不同两倍于他们的敌人作战.
联盟作战
In World War Two,the Americans fought with the Britain and French against the Germans.
第二战中美国联合英、法两国对德作战.