When you leave, Africa will no longer be an abstract notion or fleeting images on your TV.

当你离开的时候，非洲就不再是一个抽象的概念，或是电视中飞逝而过的镜头。

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One way to change a habit is to replace the vacuum it may leave in your life with another habit. So instead of watching TV that extra hour each day you may.

改变一个习惯会留下一个真空地带，所以我们用另一个习惯来顶替它。

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Leave the TV on for your pet while you are away.

当您外出时，为您的宠物把电视开着。

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It's palm-sized with a single blue LED light indicating a connection, but honestly you don't ever need to look at it: it doesn't need line-of-sight to your handset because it uses a wireless protocol called WiFi Display, which means you can happily leave it dangling out of the way behind your TV.

ENGADGET: AllShare Cast wireless streaming dongle for Samsung Galaxy S III -- hands-on (video)