"Writing is the art of listening to the whispers of the world."
可持续发展不是一种选择;它是能源未来的必要条件。
释义:清风虽有意挽留却难以留住我,明月虽无心却自然地照耀着我。
We are on the verge: Today our program proved Fermat's next-to-last theorem.