It was his fourth world title in the event. Meanwhile,defending World champion Tyson Gay of the United States announced he will not run in the 200 meter event at the Championships.

VOA: standard.2009.08.18

In the current world champion of chess, I think Vladimir Kramnik, was defeated in December by a chess-playing program.

当前的国际象棋世界冠军,弗拉基米尔?克拉姆尼克,就在今年12月被一个国际象棋程序击败

耶鲁公开课 - 死亡课程节选

In the most straightforward natural meaning of the term, we have to say--I think the program that beat the world champion was called Deep Fritz.

从最直接最自然的意义上理解,我们不得不说,我想,那个打败世界冠军的计算机程序叫深弗里茨

耶鲁公开课 - 死亡课程节选

The winner will leave with almost nine million dollars and the title of two thousand ten world poker champion.

VOA: special.2010.07.26

Last year,the World Series of Poker produced its youngest champion yet.

VOA: special.2010.07.26

"It focuses them and makes them buckle down and do the right things in life." At 25, Thompson fought his way to become World Lightweight Boxing Champion.

VOA: standard.2010.04.29

They really,I think, represented us very well." Among the American highlights - alpine skier Bode Miller, a two-time overall World Cup champion, ended the frustration of being shut out in the last Olympics by winning a set of medals, a gold,silver and bronze.

VOA: standard.2010.03.01