It only remains to replace each edge of this diagram by a suitable subgraph which bears the information previously given by the direction and colour.

剩下要做的事只是用适当的子图代替这个图解的每条边，使得原来用方向和颜色给出的信息由这个子图来担当。

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"We can't just replace Edge because you're good at Guitar Hero, " he explains.

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Of course, not everyone is going to do like Terry and replace their disposable razors with a vintage straight-edge razor, but her book is full of easy tips that even the laziest environmentalist could implement, and she goes far beyond the usual bag and bottle tips, too.

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The Edge co-founded Music Rising, a charity to replace instruments lost or destroyed in Hurricane Katrina.

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