Jiang Ren and Rong Rong are two Korean athletes. Jiang Ren is a Korean short track speed skater, and Rong Rong is a member of the Korean women's curling team. Their two classmates are two famous athletes in China, Wu Dajing and Fan Kexin.

Short track speed skating (Short Track Speed ??Skating), the full name of short track speed skating, is an ice racing sport performed on a short track. It originated in Canada. At that time, some Canadian speed skating enthusiasts often went to indoor ice hockey rinks to practice, and indoor speed skating competitions emerged. At the beginning of the 20th century, short track speed skating gradually became widespread in European and American countries.

Although there are big differences in appearance between short track speed skating skates and long track speed skating skates, their structures are basically the same. The short track speed skating track has many curves and steep angles. There are a large number of players in a game, and players dodge a lot during the game and slide at a fast speed, which requires the skates to be able to adapt to the characteristics of the game.

Compared with ordinary skates, short track speed skating skates are taller, shorter, and have a larger arc. This design makes turning smoother; the blade rest is removable and can be adjusted by the skater during skating. The position of the blade.

The competition events of short track speed skating mainly include 500 meters, 1000 meters, 1500 meters and relay. The competition adopts a knockout system, with group preliminaries held first, and the top 2-3 will advance to the next round, which is the semi-finals. Short track speed skating competitions are usually held between 4 and 6 people. The track is oval, 111.12 meters long and 30 meters wide.

Short track speed skating is managed by the International Skating Union (ISU), which was established in the Netherlands in 1892. The short track speed skating competitions organized by the International Skating Union mainly include the World Short Track Speed ??Skating Championships, the World Short Track Speed ??Skating Youth Championships, etc. Short track speed skating was first listed as a Winter Olympics performance event at the 1988 Calgary Winter Olympics. Short track speed skating was listed as an official event at the 1992 Albertville Winter Olympics.

Curling is a competitive sport in which rocks are thrown on the ice. It is known as "chess on ice". It tests the physical and mental strength of the participants, showing the beauty of movement and stillness, and the wisdom of choice. Curling is a Winter Olympics event and originated in Scotland in the 14th century. In 1795, the first curling club was founded in Scotland.

In 1927, Canada held its first national curling competition. Curling was introduced to Asia in 1955. In 1924, curling was included as a performance event in the first Winter Olympics. It was officially included in the Winter Olympics in 1998.

The highest organizational body of the curling movement is the World Curling Federation (World Curling Federation), which was established on April 1, 1966 and is headquartered in the United Kingdom. The Chinese curling organization is the Chinese Curling Association, which was established on October 12, 2004. The association is located in Beijing.

The curling game consists of two teams of four members each. During the game, the players need to throw the stone kettle to the center of the opponent's camp while protecting their own stone kettle from being knocked away by the opponent. During the game, players need to throw three times when throwing pots, and precise measurements and calculations must be made before each throw. At the end of the game, the distance between the stone pot and the center of the camp circle determines the outcome.

There is a big difference between curling and ice hockey. Ice hockey requires skates, while curling does not. Curling is mainly a throwing competition, which requires high physical and mental requirements and is very interesting.