可归约性的概念对于理解不同计算问题之间的关系至关重要。
The only way to do great work is to love what you do.
Dance like nobody's watching, love like you've never been hurt.
文学应该让安逸者不安,让不安者得到安慰。
Technology can be our greatest ally in reducing bycatch and protecting marine life.
Life is either a daring adventure or nothing at all.
In mathematics, you don't understand things. You just get used to them.