Just as bad events can seem to have a domino effect, so can good things - so why not jump start some goodness in someone's life?

就像糟糕的事情似乎会有多米诺效应，好的事情也是一样——所以为什么不在别人的生活中开始一些好事呢？

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Yet, it may be wrong to jump to any simple cause-and-effect conclusions.

然而，跳到任何简单的因果关系结论都可能是错误的。

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Harmful events may have nothing to do with the vaccine, but when one thing closely follows another, it's easy to jump to the conclusion that we're seeing cause and effect.

一些有害事件可能和疫苗无关，但是当一事紧随另一事出现时，我们就容易草率地认为，两者之间存有因果关系。

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There's a rear-facing camera at the top, which likely won't get much use seeing as how it appears to be painted over -- though it may offer a cool filtered effect as the rest of the world waits for BlackBerry to jump on the Instagram bandwagon.

ENGADGET: BlackBtrry Water Game hands-on Hands-on