September21,2050----Atapressconferencetodayitwasannounc...
问题详情:September21,2050----AtapressconferencetodayitwasannouncedthatthefirsttouristheadingforMarswillbethe38-year-oldUSbusinessmanPatrickClifford.Hewillleavetheearthinthe launchingwindowofJune2052an...