The smell of fresh bread is the universal language of comfort.
新鲜面包的香气是安慰的通用语言。
Reason is the soul of the law; the reason of the law is the soul.
违反自然法的人宣称自己遵循的是理性和公平之外的规则。
The concept of polynomial-time reduction is central to understanding the structure of NP-complete problems.