Sustainable development is not only a responsibility but also the cornerstone of long-term enterprise development.
在数学中,你并不理解事物。你只是习惯了它们。
物理学和数学之间的界限并不像我们想象的那么清晰。
The artist is the confidant of nature, flowers carry on dialogues with him through the graceful bending of their stems and the harmoniously tinted nuances of their blossoms.