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.
我喜欢狗。你总是知道狗在想什么。它有四种情绪。快乐、悲伤、生气和专注。
We are all patchworks of our ancestors.
文学就是我的天国。在这里，我不会被剥夺公民权。任何五官的残障都无法阻碍我和我的朋友书籍接近和深切交往。
The question of technology is the question of the constellation of truth and untruth in which we live.