When we regard someone larger than life, we actually want to say that he/she is more interesting and more exciting than an ordinary person. 很难用一个很确切的中文翻译去表达larger than life的涵义。当larger than life去形容一个人的时候，往往是想表达他不同于一般常人的状态，如超于常人的有趣与精力充沛，给人留下不同反响的印象。很多明星就算是larger than life的典型吧。

Examples:
Too much media exposure has turned this talented but unknown kid into something larger than life.  媒体的大量报道使这个一向默默无闻却天赋异禀的孩子变得不平凡起来。
Maybe you have to be larger than life to make it in the predatory competition. 在激烈的竞争中，你或许应该显得与众不同些才能取得成功。