Four world records were set yesterday at the world Championships-three by American superstars Michael Phelps, Natalie Coughlin and Aaron Peirsol, the other by lesser-known Italian Federica Pellegrini.

• 在昨天的游泳世锦赛上四项世界记录告破。三项世界记录分别由美国的名将菲尔普斯、考芙琳和佩尔索尔刷新。另一项世界记录由名不经传的意大利选手佩乐格里尼打破。