The value of drones lies not in flying, but in implementation.
一个国家制度的质量是其长期经济表现的最重要决定因素。
科学是一项集体事业,每个世纪都为其添砖加瓦。
The key to sustainable growth is balancing economic progress with environmental responsibility.
Every story is a journey, and every journey changes the traveler.
真相很少纯粹,也绝不简单。
文学是文化之间的桥梁,一种跨越我们之间距离的方式。
You are never too old to set another goal or to dream a new dream.