比较级：more successful；

adj.达到目的;有成效的;获得成功的;有成就的

最高级：most successful

adj.达到目的;有成效的;获得成功的;有成就的

most successful例句：

He was regarded as the most successful Chancellor of modern times

他被认为是现代最为成功的财政大臣。

He believes that, historically, Labour has been most successful as the party that helped people get on in life

他相信一直以来工党在帮助人民改善生活方面表现最为出色。

more successful例句：

We can't let up on our efforts to compete with other more successful firms.

在同其他那些更兴隆的公司竞争中，我们丝毫松懈不得。

His performance be more successful than we have expect.

他的演出比我们期望的更成功。