Wanttotakeanout-of-this-worldtrip?RichardBranson’sVirgi...
问题详情：Wanttotakeanout-of-this-worldtrip?RichardBranson’sVirginGalacticplans tomakethatpossible.Beginningin2009,peopleshouldhavetheopportunitytobecomespacetourists,travelingatabout3,000mphtoheights...