英语高手进!帮我把这段文字翻译成英语好吗?急

英语高手进!帮我把这段文字翻译成英语好吗?急
他终于钓上了一条大马林鱼,但是这条鱼实在太大,把他的小船在海上拖了三天才筋疲力尽,被他杀死了绑在一边,在归程中一再遭到鲨鱼的袭击,最后回港时只剩鱼头鱼尾和一条脊骨．
语言尽量简练,适合初中的语言．

He has finally got the big malin fish,but the fish was too big that pulled his boad for 3 days and exhausted.The fish was killed and tied up on the side.On the way back it's always attacted by sharks.At the end back to the harbor,there's only some fish head and tail and one backbone.