在我们的生活中,有许许多多的第一次。仔细想想,其实每一个第一次都不普通,都是伟大的突破——有的改变了世界,有的改变了自己。人类的第一次1969年7月16日,人类第一次登上月球——美国宇航员阿姆斯特朗走上舱门平台,面对陌生的月球世界凝视几分钟后,挪动右脚,一步三停地爬下扶梯。5米高的9级台阶,他整 There are many, many times in our lives. Think carefully, in fact, not the first time each ordinary, are great breakthroughs - some changed the world, some changed their own. The first human race on July 16, 1969, the first man on the moon - American astronaut Armstrong embarked on the landing platform, staring at a strange moon world a few minutes after the move, move his right foot, step by step to stop Climb down the escalator. 5 meters high 9 steps, he whole