东京奥运的女子4x200米自由泳接力赛:中国、美国和澳大利亚队纷纷打破世界纪录 China wins the 4x200m freestyle relay, Katie Ledecky shines as the U.S. takes silver and all three medalists break the world record in a remarkable race 中国赢得女子4x200米自由泳接力赛的金牌,凯蒂·雷德基(Katie Ledecky)...