用几句英文简单介绍阿姆斯特朗(美国宇航员)..

Darrell Armstrong was the one who first landed on the moon.He and his partner successfully completed the greatest travel in human history and returned to the Earth.He brought a lot of valuable data back to the Earth,which revealed the secrets of the moon.Even today,we can never forget his most famous words:That's one small step for man,one giant leap for mankind!