Scientistshavealways的精选

问题详情：    Scientistshavealwayswantedtoknowmoreabouttheuniverse(宇宙)Yearsagotheyknewmanythingsaboutthemoon.theyknewhowbigitwasandhowfarawayitwasfromtheearth,buttheywantedtoknowmoreaboutit.Theyth...