I've been thinking a lot about the world recently and how it's changed over the last 20, 30, 40 years. Twenty or 30 years ago, if a chicken caught a cold and sneezed and died in a remote village in Ea

奥巴马发布了每周的例行演讲，7月4日是美国独立纪念日，奥巴马祝所有的美国公民节日快乐，同时，奥巴马也感谢了所有正在服役的士兵们，感谢为了祖国稳定所做的奉献和牺牲。 Remarks of President Barack Obama Weekly Address: Celebrating Independence Day 庆祝美国独立纪念日 英语演讲稿中英对照 The White House Jul

I'd like to talk about sportsmanship. Here is a quote I want to start with. It's “Win or lose,be a good sport.” That means always play fair. Always follow the rules. Always be hone

Now, let me spend the rest of my time on the third big problem, 现在，让我把余下的时间花在对第三个重大问题的探讨上。 because it's more subtle and perhaps difficult to grasp. 因为这个问题更加微妙，也可能难以把握。 Think about some time in you

The most complex problems in our time can be solved with simple techniques, if we are able to dream. 现如今，只要有梦想，就可以用最简单的手段解决最复杂的问题。 As a child, I discovered that creativity is the key to cross from dre