不要单独看much more of a…，而应将它与后面的than联系起来看，即 much more of a … than，其中的much只用于加强语气，也可不用，而只说 moreof a … than，其本意是“比……更像……”，有时也翻译成“与其说是……不如说是……”（当然也可根据具体的语境灵活翻译）。原句意思是：

Running a school is much more of abusiness than it used to be—by law we have to balance our books. 与以前相比现在管理一所学校更像是在经营一家企业——从法律上讲我们必须保证收支平衡。

更多例句（注意翻译的灵活性）：

She’s more of a man than he is. 她比他更像一个男人（=她比他更有男子气）。

She’s more of apoet than a novelist. 与其说他是位小说家，还不如说是位诗人。

To be honest, she was much more of a hindrance than a help. 说实话，她帮不上忙反而是累赘。

It was much more of a holiday than a training exercise. 与其说是培训活动，还不如说是度假。

Nowhere is drug abuse more of a problem than in the US. 没有什么地方吸毒问题比美国更严重。

Your extrafat may be more of a health risk than you realize. 多余的脂肪对健康的威胁可能比你意识到的要大。

I’m afraid he’s more of a talker than a doer,which is why he never finishes anything. 与其说他是个实干家，不如说是个空谈家，这就是他什么事都永远干不成的原因。