To be aware of the idea of social structure and to use it with sensibility is to be capable of tracing such linkages among a great variety of milieux.
乳制品养殖既是一门艺术,也是一门科学——要尊重两者。
The truth is never just one thing; it is always several things at once.
Your life is not a result of what happens to you, but of the choices you make.
不断学习,不断成长。