NANCHANG, Sept. 17 (Xinhua) -- Before the first glare of the sun, 66-year-old Wang Chunxing slowly walked into the water. After a few strokes and kicks, he was a few meters away.
In the Olympic triathlon, a single standard distance of swimming is 1.5 kilometers. Wang's routine was about two kilometers at one time, and he swims almost every day. His health-tracking app recorded 30 times swimming in June, 29 times
