- 问题详情:Nooneknowswhatwouldhappeninthefutureforsure.61.weoftenthinkofthefutureandwonderwhattheworldwouldbelike62.ahundredyears'time.Thinkofspace.Perhaps63.permanentstationonthemoonwillhavebeensetup.Perhapspeoplewillbeabletovisitthemoonasa64.(tour).Cheap...
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