P与NP问题是计算机科学中最重要的一个问题之一。
The P versus NP problem is one of the most important problems in computer science.
子张问:“什么是五种美德?”孔子说:“君子对人民施加恩惠,却不耗费财用;使百姓劳苦,百姓却无怨言;自己有所欲求却不贪婪;安宁矜持却不骄横;威严却不凶猛。”……子张又说:“什么是四种恶行?”孔子说:“事先不经教育,犯了罪就杀头叫做肆虐;不先告诫便要求有成效,这叫粗暴;发布命令迟缓,却突然限期完成,这叫残害人;同是给人赏赐,却出手吝啬,这叫只进不出的财务衙门。
Climate change isn't a future threat to forests—it's the chainsaw at work right now.
我一直相信,如果你想在生活中取得任何成就,就必须为之努力。
Every ton of coal extracted should carry the weight of our commitment to the future.
I think music is a magical thing. It can make you happy or sad, but most importantly, it makes you feel the beauty of life.