多项式时间归约的概念对于理解NP完全问题的结构至关重要。
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.
"The mind is its own place, and in itself can make a heaven of hell, a hell of heaven."
The stage is where we feel most alive.
La tradición es importante, pero también hay que saber evolucionar.
当有人真正倾听你而不对你做出评判，不试图为你承担责任，不试图塑造你时，感觉真是太好了！