While looking for happiness, one must enjoy life itself - this is the single secret to real happiness.

所以在寻找快乐的同时更要享受生活这才是快乐的不二秘诀。

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Yet this palaeontological paradise holds a dark secret: the mass deaths were not caused by a single event.

然而，这片古生物乐土却隐藏了一个秘密：如此大量的死亡并不是一次事件导致的。

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In part 1 of this article series, our intrepid (if somewhat obscure) secret agent Pal Jim Bland helped us through the basics of single sign-on and multi-directory, multi-identity environments.

在本系列文章的第1部分中，我们无畏(虽然有些神秘)的特工朋友帮助我们学习了单点登录和多目录、多身份环境的基本内容。

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If there's a single management secret to be learned from the man, for instance, it's about how important it is to delegate.

WSJ: Book Review: Ozzie's School of Management

Both of these pieces have prompted my thinking about what is perhaps the single greatest secret to my own success, not only in business, but also in reaching personal goals in areas such as music and athletics and fitness.

FORBES: The Single Greatest Secret of Leadership: 'Fail Up'

As the head of Google's antiwebspam team, he's rewriting the complex set of rules for ranking Web pages based on their relevance to a given query, which is the company's DNA, its single most important product and a trade secret more closely guarded than the recipe for Coke.

FORBES: Magazine Article