出自汉·桓宽《盐铁论·论灾》。兵器是凶器。盔甲坚固,兵器锋利,那是天下的祸害。此言战争对人类的危害性,寄寓了反对战争的思想。
The concept of NP-completeness has provided a powerful tool for understanding the complexity of computational problems.
写作是一段通往未知的旅程,文字是指南针,想象力是向导。
In saying that someone did something, we may be doing something ourselves.