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paper card, often the same dimensions as a modern credit card, but with punched，更多细节参见同城约会
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Москвичей предупредили о потепленииСиноптик Ильин: 1 марта в Москве потеплеет до плюс 4 градусов。业内人士推荐WPS官方版本下载作为进阶阅读
The algorithm walks the tree recursively. At each node, it checks: does this node's bounding box overlap with the query rectangle? If not, the entire subtree gets pruned (skipped). If it does overlap, it tests the node's points against the query and recurses into the children.