the fastest的原形和比较级

the fastest是形容词，副词fast的最高级形式fast 是原形faster 是比较级形式He is a fast learner in his team.在他的队里，他是一个很快的学习者。

Her brother swims faster than any other boy in his class.她哥哥比他班上别的男孩游泳快些。Subingrui ran the fastest on the track~and~field ground.苏炳瑞在田径场上跑得最快！