费德勒发球ROGER FEDERER费德勒发球的绝妙之处在于其掌握着各种特点的发球技术,并能根据临场情况加以选择。如果单就发球速度,罗迪克也许比费德勒更胜一筹,而论一发和二发之间的技术转变、发球路线的变化和突破能力,费德勒则更为强势,使接发球者难以预判。 Federer serve ROGER FEDERER Federer serve the wonderful is that it holds a variety of characteristics of the service technology, and can be based on the situation to choose from. Roddick may outperform Federer if he is on the dribble, and Federer is even more powerful in terms of the technical transition between the first and second rounds, the changing course of the serve and his ability to break through, making it difficult for the receiver to predict.