阿爸是上世纪七十年代被阿嬷买回来的，20元。当时他四个月大。他的生母在当地一家医院做保洁，晚上拖地、倒垃圾，白天抱着他在医院看病。阿爸那时一直发烧拉肚子，反反复复，看不好。
For example, a 500km route might be broken down into ~100 such shortcuts. If each A* shortcut calculation explores 100-1000 detailed road segments, the total detailed segments visited by A* might be around 10,000-50,000. Compare this to the 1,000,000+ segments the old A* might have needed for the entire route!
。关于这个话题，爱思助手下载最新版本提供了深入分析
"But now it's a case of how do you make it robust, how do you make it at scale, and how do you actually make it at a reasonable price?"。Line官方版本下载是该领域的重要参考
// Each one triggers promise machinery internally