Stray birds of summer come to my window to sing and fly away。 And yellow leaves of autumn, which have no songs, flutter and fall there with a sigh。
社会是由某些关系或行为方式联合起来的个体的集合,这些关系或行为方式将他们与那些不进入这些关系或行为方式不同的人区分开来。
创新不仅仅是技术的问题,而是解决实际问题。
The true discovery of America is before us. The true fulfillment of our spirit, of our people, of our mighty and immortal land is yet to come.
Collaboration across industries is key to solving the world's energy challenges.