Reading furnishes the mind only with materials of knowledge; it is thinking that makes what we read ours.
高分子化学的引入开辟了一个新的材料世界,其性质和应用仍远未被充分探索。
故事是作者写给自己的一封信,但允许他人阅读。
The future of forestry lies in technology, but it must serve nature, not exploit it.
We are all branches on the great tree of life.