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。关于这个话题，服务器推荐提供了深入分析
今天的中国海纳百川，国家发展和人民幸福同心同向。把亿万人民的智慧和力量汇聚起来，我们朝前走步履坚实、步伐铿锵。
With a thousand points, you barely notice the delay. With a million, you're doing a million distance calculations for every single query. On a phone updating the map as the user scrolls, that's untenable.