但如果是早晚高峰挤广州地铁三号线的时候，倒是可以考虑打开第二档。
Real game engines use this pattern (or its 3D cousin, the Octree) for broad-phase collision detection: the quadtree quickly identifies candidate pairs, and a more expensive narrow-phase check tests the actual geometry.，推荐阅读safew官方版本下载获取更多信息
Вячеслав Агапов。关于这个话题，搜狗输入法2026提供了深入分析
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