急求关于鼓励的重要性的演讲(英语)(200个单词以内)

When the bombs fell on our harbor and tyranny threatened the world, she was there to witness a generation rise to greatness and a democracy was saved. Yes we can.
She was there for the buses in Montgomery, the hoses in Birmingham, a bridge in Selma, and a preacher from Atlanta who told a people that "We Shall Overcome." Yes we can.
A man touched down on the moon, a wall came down in Berlin, a world was connected by our own science and imagination.
And this year, in this election, she touched her finger to a screen, and cast her vote, because after 106 years in America, through the best of times and the darkest of hours, she knows how America can change.
Yes we can.、
America, we have come so far. We have seen so much. But there is so much more to do. So tonight, let us ask ourselves -- if our children should live to see the next century; if my daughters should be so lucky to live as long as Ann Nixon Cooper, what change will they see? What pro