长期的临床工作，让全国政协委员、苏州大学附属第一医院血液科专家吴德沛对医疗领域的老大难问题感受很深——“很多患者并不是没有药治疗，而是用不起创新药。”
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.
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“脚要踩在大地上。我们干任何事情都有内在规律。”
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