网球四大满贯赛事之一的美国网球公开赛周一揭开战幕，志在一年内夺得3个大满贯冠军的瑞士人费德勒在首场比赛中轻取西班牙的科斯塔，而小威廉姆斯更是以6-3 6-1的大比分轻松晋级。 Roger Federer of Switzerland hits a forehand to Albert Costa of Spain during their match at the ...