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.
63-летняя Деми Мур вышла в свет с неожиданной стрижкой17:54
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Фонбет Чемпионат КХЛ
description: 'Changes the app background color',
适配度，是经济规律中的一个视角，其实也是“树什么样的政绩”的度量衡。政绩观对不对，拿这把尺子量一量就清清楚楚。