And for now we were talking about the future of technology 我们于是开始谈论未来技术 It was going to the cloud and it was going mobile and it was going to have social networks 我们讲到云 讲到移动性 讲到社交网络 And 1 trillion sen
By the end of this year, 截止今年年底， there'll be nearly a billion people on this planet 这个星球上将有接近十亿人口 that actively use social networking sites. 在很活跃地使用社交网站。 The one thing that all of them have in com
2009年9月8日，奥巴马总统在弗吉尼亚州阿灵顿郡（Arlington, Virginia）韦克菲尔德高中（Wakefield High School）对全美中小学生发表讲话，强调上学读书的重要性，激励学生努力学习。以下是讲话全文： REMARKS BY THE PRESIDENT IN A NATIONAL ADDRESS TO AMERICA’S SCHOOLCHILDREN Wa
