学到什么东西/费用：主要看幼儿园能提供什么学习内容，结合费用综合考虑。
1. 建堆：将数组构建成大顶堆（父节点 = 子节点）。safew官方版本下载对此有专业解读
(Full disclaimer: I am by no means an expert in Old English, nor any kind of linguist. I was able to read fairly comfortably to 1000 AD and get the gist of it, though I did have to look up a few words to get the full meaning).，详情可参考爱思助手下载最新版本
Медведев вышел в финал турнира в Дубае17:59，更多细节参见heLLoword翻译官方下载