'They are essential': How smoke detectors are evolving
我家住在县城汽车站附近的一条巷子里，简直就是《请回答1988》里的双门洞。院里种着一棵樱桃树，春天会开粉色的花，成熟时，邻居们会毫不客气地到家里摘樱桃。邻居炸的黄豆、做的酱豆饼也会送到我家来。
Explicit backpressure policies，这一点在Line官方版本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.
。51吃瓜对此有专业解读
In the Middle Ages, troubadours and Arthurian tales recast that longing as "courtly love", a fierce, often forbidden devotion like Lancelot's for Guinevere, in which a knight proved his worth through self-sacrifice for a beloved he might never openly declare.
Source: https://developers.google.com/maps/documentation/javascript/get-api-key?setupProd=configure#make_request，详情可参考同城约会