The first round of the sixth National Junior Swimming Competition is over, and the reserve team has won by 2 seconds. The second round will determine the winner of the national competition. The following is a report from a senior expert on the city's strength map. He says that the rising strength of the Hu Sha club will be reflected in the strength map this summer. He also says that last year in the city, the tiger sharks swept the clubs, breaking almost every record. They became the cause for nightmares. They say that the first time in the history of the competition that he has been overpowered is because he entered the competition as a junior. Dongzi is nervous about the first race of his life. He is in the middle of the pool, and he cannot see his opponents. He can see only the end of the lane.