Option 1: The system can update the cost of that specific shortcut in the base graph and quickly re-run the Dijkstra search (Step 2) on the abstract graph to find an alternative high-level path.
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▲ MacBook 灵动岛效果图。关于这个话题，safew官方版本下载提供了深入分析
At this point, I think most English speakers can follow this passage, if not understand the finer points. I imagine some more vocabulary like "hine" may reveal itself to you purely through context.