THE roots of algebra, asJohn Derbyshire tells us, go back to the ancient world: the Babylonians leftcuneiform tablets showing simple algebraic problems.

代数学,据约翰·德比夏尔所说,可以追溯到古巴比伦人留在楔形文字石碑上的简单的代数问题.

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It's a very important point, if you see the very simple math that I'm showing up here.

这一点要特别注意，看看这个简单的数学表达式。

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Here's a simple example showing it's not true.

有一个简单的例子证明这不是真的。

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Inside the machine was a computer screen showing simple verbal challenges.

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Hannover 96 removed all links to their regular website content, replacing them with a black page showing the simple words "Wir trauern um Robert Enke" ("We are mourning Robert Enke").

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French director Damien Baroghel submitted a short and simple video showing a man talking to a friend on his phone, and simultaneously stopping by an ATM to cast his vote on election day.

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