ladies teacher and classmate: Good morning. I have been for three years. Twenty stops. My name is Jane Huang. I want to thank my teachers and classmates for giving me this opportunity to conduct a
Hello, everybody.Today marks an historic anniversary—70 years since the Allied victory in Europe during World War II.On V-E Day after the Nazi surrender, people swarmed the streets of London and Paris
So here, you're going to see a thousand robots that are working together to self-assemble the letter K. 这里你们可以看到一千个机器人合作自发组成字母K。 The K is on its side. And the important thing is that no one is in char
I Have a Dream 我有一个梦想 I say to you today, my friends, that in spite of the difficulties and frustrations of the moment, I still have a dream. It is a dream deeply rooted in the American dream. 朋友们，今天我
A group of students was told that a small democratic country had been invaded and had asked the U.S. for help. 在一项研究中，一群学生被告知某个民主小国在遭到侵略后向美国寻求援助。 And they had to make a decision. What should they do?
