Shortcuts: For common scenarios, we pre-calculate the travel time/distance (the "shortcut") between border points within the same cluster and also to border points of immediately adjacent clusters.
The parents of a two-year-old girl with a life-limiting illness have told of their "exhaustion" after being refused a request for respite help.
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Mobile apps aren't free。一键获取谷歌浏览器下载对此有专业解读
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