100x speedup is achieved by comparing HH with bidirectional A*.
有那么一刻，我看得出了神。黄土在这群踉跄的大老爷们头顶腾起，他们的头发、鼻腔、眼窝，以及厚棉服都蒙上了一层土，本就是从这片黄土里长出来的他们，身上似乎显现出一股子来自黄土高原的力量感。
。搜狗输入法下载对此有专业解读
The BBC asked Facebook why it couldn't use its facial recognition technology to assist the hunt for Lucy. It responded: "To protect user privacy, it's important that we follow the appropriate legal process, but we work to support law enforcement as much as we can."
Alison Francisand