Nothing spoils a romance so much as sense of humour in the woman—or the want of it in the man.
膨胀的概念是宇宙在其最早的时刻经历了一段极其迅速的扩张期。
The interplay between analysis and algebra is the driving force behind many breakthroughs in number theory.
The greatest use of life is to spend it for something that will outlast it.