The greater our knowledge increases, the greater our ignorance unfolds.我们学到的知识越多，认识到的无知就越多。-----肯尼迪 In this 1962 speech given at Rice University in Houston, Texas, President John F. Kennedy reaffirmed
Unit21 An Excerpt of John F. Kennedy Inaugural Address 第二十一课 肯尼迪总统就职演说摘录 Let every nation know, whether it wishes us well or ill, that we shall pay any price，bear any burden, 告知诸国，不论是希望我们好或不好的国家，我们都会不
