15-08-21 Ning Zetao of China led all the way to win the 100-meter freestyle at the world swimming championships in a race missing two key competitors. 中国选手宁泽涛在世界游泳锦标赛中勇夺100米自由泳冠军！他的两位主要对手缺席了此次比赛。 100米自由泳用英文100-...