Prepared Remarks of President Barack Obama Weekly Address April 25, 2009 Good morning. Over the last three months, my Administration has taken aggressive action to confront an historic economic crisis
成功连任美国总统的奥巴马当地时间7日凌晨发表了胜选演讲，对支持者表示感谢。英语，中英文对照演讲稿，十分精彩的演讲，真的能煽动人心。 2012年11月7日奥巴马连任胜选演讲稿全文【中英】 “Thank you. Thank you. Thank you so much. 谢谢，非常感谢各位。 Tonight more than 200 years after a former colon
These processes are too small to be seen directly, even with the best microscopes, 这些过程太小了以至于无法看到，即使是用最好的显微镜， so animations like this provide a really powerful way of visualizing a hypothesis. 因此，像这样的
I'd like to start with a short story. 我想先讲个故事。 It's about a little boy 有个小男孩 whose father was a history buff 他父亲是个历史爱好者， and who used to take him by the hand 常牵着他的手 to visit the ruins of an an
