In these days a such abundance in advancement and what we can do, it pains me to think that we do so little for our children. In some ways, I feel undeserving to receive an award by doing something th

My fellow Americans, tonight I want to speak to you about what the United States will do with our friends and allies to degrade and ultimately destroy the terrorist group known as ISIL. As Commander-i

长篇英语演讲稿优秀范文1 　　good morning,dear teacher and my friends. 　　it’s a very intresting topic today. 　　i think my dad was a hero for me when i was a young child. we'd go fishing, walks, and other fun things

Good morning, everybody. Please have a seat. More than 54 years ago, at the height of the Cold War, the United States closed its embassy in Havana. Today, I can announce that the United States has agr

I call this ability collective learning. It's what makes us different. 我把这个叫做集体学习的能力。这使我们如此特殊。 We can see it at work in the earliest stages of human history. 我们可以看到在人类历史早期的阶段这种能力的运作。 We evolved as a s