July20,1969wasanimportantday.Two61(美国)astronautsplanted...
问题详情：July20,1969wasanimportantday.Two61(美国)astronautsplantedthefirsthumanfootsteponthemoon.62(他们)nameswereArmstrongandAldrin.TheywentintoaspaceshipwhosenamewasApollo.AsArmstrongreachedhisleftfo...