如果你问我，在这个时代最离不开的科技产品是什么？我可能会选择一个极度常见乃至普通的产品：数据线。虽然看似是没太多技术含量，但你就说能不能离得开吧……
“多打大算盘、算大账，少打小算盘、算小账，善于把地区和部门的工作融入党和国家事业大棋局，做到既为一域争光、更为全局添彩”；
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"These types of surgeries are too risky, yet it's still so accessible," she said.
A quadtree reduces this: rebuild the tree each frame, and for each object, query only the nearby region. Objects in distant quadrants are never compared.