63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
「我必須繼續工作，生病會好，但欠錢沒有辦法好。」
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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.