采样出自约翰·F·肯尼迪(John F. Kennedy)在赖斯大学 关于航天事业的演讲(1962年9月12日)---我们选择登月 (We Choose to Go to the Moon) But why, some say, the moon? Why choose this as our goal? And they may well ask why climb the highest mountain? Why, 35 years ago, fly the Atlantic? Why d
