Point lookups are useful, but the operation you'll reach for more often is a range query: give the tree a rectangular region and retrieve every point inside it, without scanning the entire dataset.
過去一年，北京將人工智慧與機器人技術納入經濟戰略核心，在先進晶片製造、自動化及生成式AI領域投入巨資，力圖在科技領域超越美國。
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Labour MP Dawn Butler wrote to the BBC asking for an "urgent explanation" as to why the slur was broadcast despite the show being on a delay.
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