求翻译：400米自由泳决赛夺冠后，21岁的孙杨坐在浮标上，面对摄像机，发出一声大吼，狠狠地将拳头捣在水中，成为中国男子的第一个奥运会游泳冠军。去年的罗马世锦赛上，孙杨就开始为世人瞩目，当时他以14分34秒14打破了“自由泳长距离之王”哈克特沉睡了11年的1500米自由泳世界纪录。8月5日凌晨，孙杨在伦敦奥运会泳坛里再次夺走一枚金牌，并以14分31秒02刷新了自己创造的世界纪录。是什么意思？

正在翻译，请等待...

400m freestyle final, after winning the 21 year-old son Yang sitting at the buoy, a camera, and a loud roar, glared at the fist smashed into the water, a Chinese man in the first Olympic swimming champion. Last year's World Championships in Rome, Sun Yang began to world's attention, and at that time

After 400 meter crawl finals wins the championship, 21 year-old grandson Yang Zuo on the buoy, facing the camera, sends out one to bellow, pounds maliciously the fist in the water, becomes the Chinese men the first Olympic Games swimming champion.In last year Roman international championship, Sun Ya

After 400 m freestyle finals win, aged 21, Sun Yang sits on the buoy, facing the camera, send a voice roared, gave his fists during in the water, becoming China's first Olympic swimming champion in the men. At the World Championships in Rome last year, Sun Yang begin to around, when he had 14 minute