now split the page onto the free list:
20 monthly gift articles to share
，这一点在heLLoword翻译官方下载中也有详细论述
For well-distributed points, nearest neighbor search is often near O(logn)O(\log n)O(logn) in practice. In the worst case (all points clustered tightly or along a line), it can degrade to O(n)O(n)O(n), but this is uncommon with typical spatial data.
Everything Free, has plus:
过去十多年，智能手机创造了移动互联网经济的空前繁荣，而围绕这一核心硬件，也日渐形成了庞大的、成熟的、囊括高精尖制造技术的超级供应链。尤其是苹果，苹果一直占据着这条供应链的核心位置，其不但拥有优先供应权、强大的议价权，还直接影响和引导各类供应商的研发路线。