In this virtual world you can always get free email addresses, free homepage space, etc.

在虚拟世界中，你总是可以得到免费电子信箱，免费主页空间等等。

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Dropping it to 16C - the lowest setting in this virtual world - only shaves 7% off carbon emissions.

BBC: How warm is your home?

Even in this new virtual world, mom still knows best.

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It is a spin on the traditional social game where you are only rewarded in the virtual world, in this case, the prize arrives on your doorstep.

FORBES: Is Sponsored Gaming The Next Wave?