How did they know Jennifer's phone number?

他们是怎么知道珍妮弗的电话号码的？

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First of all, situation number one, well, you know how to do that.

首先，情形一，你们知道如何做。

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How it could happen: There are any number of theories for how human civilization — the world as we know it — might end.

它是怎样产生的：有很多关于人类文明是怎样的理论——就我们所知道的世界可能已经结束。

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"That is an astounding number given that we know how to prevent tobacco-attributable death and disease, " says Dr. Sarah England, the World Health Organization's ( WHO) Tobacco Free Initiative Officer in China.

CNN: China clouded in cigarette smoke

Techies behind the efforts say programming know-how is going to be important in a growing number of professions and that those who have the skills should give back.

WSJ: Beyond the Three R's: Push to Teach Coding at School

Though the information the search engine provides on the cameras themselves is typically little more than an IP address and a camera name or model number, Google still provides those who know how to ask with extensive lists of IP cameras and Web-enabled surveillance systems throughout the world.

FORBES: Web Security Cams Are A Voyeur's Delight: Is Your IP Cam Password Protected?