When a child masters turning on and off a light switch, his brain has expended more energy than the most complicated computer that we have on earth.

一个孩子学会开灯关灯的时候，他的大脑消耗的能量超过地球上最复杂的电脑。

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There are lots of minor changes, nothing earth-shaking that should warrant a switch for anyone.

这里有很多次要的更新，没有一个保证改变得足够震撼用户。

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The switch from the old systems on Earth will be made as painless as possible, but unavoidably there will be many of you at the heart of the changes.

从旧的系统中转换会尽可能的做到无痛苦，但是不可避免的，你们中的许多人会在改变的中心（指可能的灾难）。

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Environmental groups like Greenpeace and Friends of the Earth would like to see a switch to renewable and clean sources of energy such as solar, wind and hydro-electric power.

BBC: Impact of global warming may be severe and wide-ranging

And there's been plenty of time for his curiosity to evolve: WALL-E has been alone on Earth for seven centuries, ever since the last humans left and neglected to switch him off.

WSJ: 'WALL-E' Is Richly Human Tale of a Robot

In the lower left is a button that brings up your current location, and in the lower right is a tiny icon that lets you switch to satellite view, to see public transit and traffic information, or to launch the separate Google Earth app.

WSJ: Google Maps for iPhone Returns With Redesign That Makes It Easier to Use