former world champion的用法和样例：
例句
- Clayton Fredericks, a former world champion, said he was impressed by Alex when he started coaching him as a boy.
前世界冠军克莱顿弗雷德里科斯说，他在华天还是个男孩时开始训练他，那时就对他印象很深。 - The former World Champion is looking forward to an upturn in form next season - as well as giving a very famous rock star a snooker lesson.
前世界冠军正在寻求下赛季的突破，而且他还正在给一个著名的摇滚歌星做斯诺克的培训。
