For 26 years, a man known only as Secret Santa has roamed the streets every December quietly giving people money.

二十六年来，一位神秘的圣诞老人在每年的12月默默地送钱给行人。

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The secret (well, not really a secret; just a fact that veteran administrators know so well, they forgot to tell you) is this: every networked device actually has two addresses.

秘密在于(好吧，其实也不是什么秘密；只是一个经验丰富的管理员了解得很清楚但却忘了告诉你的一个事实)：每一台网络设备都有两个地址。

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The total number of books scanned so far is a closely held secret, but Google has claimed to be scanning 3000 items every day.

虽然Google Books已经扫描的图书数量至今还对外保密，但是Google声称大约一天要扫描3000册。

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These days it seems every major media company has a not-so-secret plan to save journalism from the Web.

FORBES: Can Digg Save The News Business?

But he has been praising Clinton at every opportunity, and he makes no secret of reaching out to her supporters.

NPR: Obama Meets with Clinton After Va. Campaign Stop