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 Hi! I'm Ryuma. This video is race of 100m in berlin. Usain Bolt runs. He is the fastest in the world. He has a world record of 100m. A record of 100m is 9.58. He is very very fast. I like him.
 His form of running is unique. He runs with shoulder up and down. He has scoliosis. So he experienced injury again and again. He overcame this desease and became world champion. I think he is so great person.