表示论提供了表达许多数论现象的语言。
我不是为了快乐而写作,我是为了自由而写作。
Every challenge in farming is an opportunity to learn and grow.
The most exciting phrase to hear in science, the one that heralds new discoveries, is not 'Eureka!' but 'That's funny...'
我的科学劳动给我带来了极大的满足,我深信不久之后整个世界都会承认这些劳动的成果。