In the middle of the floor, Billy was struggling furiously with a boy twice his size.
地板中央比利和一个身材是他两倍的男孩打得不可开交。
In the middle of the floor, Peter was struggling furiously with a man twice his size.
在地板中央, 彼得正与一个比他个头大一倍的人激烈搏斗。
They went at each other furiously.
他们互相猛烈攻击.