Every town has its ghosts, and every ghost has its story.
每个小镇都有自己的幽灵，每个幽灵都有自己的故事。
戏剧的力量在于它能够使不可见的变得可见，给无形的赋予形式，给无声的赋予声音。
A proof that P = NP would have profound implications for mathematics, cryptography, and algorithm design.
置信区间理论提供了一种不同于点估计和假设检验的估计未知参数的方法。